2019 Gmc Sierra 1500 Engine Problems

Your engine is making knocking sounds and repeatedly going into limp mode (reduced power mode), causing the vehicle to shake while driving. Despite visits to GMC and local repair shops, the limp mode keeps activating, and additional engine problems have developed that make a complete engine replacement necessary rather than repair. This is happening at only 109,000 miles.

Your truck stalled while at work and wouldn't restart, with the check engine light coming on. The dealer found that a camshaft gear spun on the camshaft shaft, shearing a locator pin and throwing off valve timing, which prevented the engine from building compression. The dealer recommended engine replacement due to extensive internal damage to the camshaft, and your warranty had expired.

Your truck's engine lost power unexpectedly while you were driving in traffic with your daughter in the vehicle. This happened around 10,000 miles after you purchased the engine in October 2025, and the issue is currently under NHTSA Engineering Analysis EA25-007. The engine suddenly stopped providing propulsion, which is a serious safety concern when driving on busy roads.

Your truck's 6.2L engine suddenly seized and shut off while driving with no warning light on the dashboard, causing you to stall and roll over a curb. This unexpected engine failure created a dangerous driving situation. The engine will likely need to be replaced or rebuilt due to internal damage from the seizure.

While driving on Interstate 35 in Texas, your engine suddenly locked up and had to be towed to the dealership. The dealership confirmed the oil level was adequate and your oil had been serviced just two weeks prior. The engine appears to have seized despite proper maintenance, which is unusual for a 6.2L engine at 149,752 miles. Diagnosis and repair will likely require the dealership to disassemble the engine to determine the cause of the lockup.

Your engine shut off while you were driving, which also caused your steering wheel to lock up and become difficult to turn. This caused you to lose control and drive onto a curb into someone's yard. This is a serious safety issue that could result in injury to yourself or others. The problem may require engine diagnostics and steering system inspection to determine the root cause.

Your vehicle suddenly shut off while driving at 45 mph, displaying a "Low Oil Pressure - Shutoff Engine" warning message. A mechanic determined the problem was a failed rod bearing in the engine. At 105,000 miles, this is considered an engine failure that may require significant repair or replacement of internal engine components.

Your engine warning light came on along with 'Service ESC' and 'Service Parking Brake' messages, and the engine started smoking. The dealer diagnosed a faulty valve lifter that needs to be removed and replaced, which can cause engine damage if ignored. This repair is estimated to cost around $7,000, though a recall may apply to your truck model.

While driving your 2019 GMC Sierra at 119,000 miles, your engine suddenly made a loud bang, began shaking violently, and started backfiring and misfiring. The dealer diagnosed a rod failure with camshaft damage and performed a $12,000 repair, but the engine completely failed again after only 20 miles on a test drive. Your truck now requires a complete engine replacement, and you're waiting to hear the total cost.

Your engine's lifters and camshaft have failed twice. This is a serious internal engine problem that affects how your engine operates and will require professional repair to replace the failed components.

Your engine's oil pump solenoid isn't working properly, which your car's diagnostic system flagged with code P06DD. This component controls oil flow to keep your engine lubricated. If left unrepaired, this could lead to poor engine performance or potential damage from inadequate lubrication.

Your 2019 GMC Sierra is making a rattling or tapping noise from the engine that you can hear while idling and when driving at 45 mph, even though no warning lights appear on the dashboard. Additionally, the blind spot warning system on both side mirrors has stopped working completely. The dealership service department should inspect both issues to determine what's causing the engine noise and repair or replace the faulty blind spot warning system.

Engine loss of power many different engine code took it to the dealership. Now they say lifters, rockers are loose and worn,broken,the cylinder 5 misfire, engine needs rebuild at 88,000 miles. Dealer wants over ten thousand dollars to take apart and repair

The contact owns a 2019 GMC Sierra 1500. The contact stated that the vehicle made an abnormal rattling sound while idling. Additionally, while driving at 45 MPH, the message "Reduced Power" was displayed, the check engine warning light illuminated, and the vehicle stalled. The contact was able to coast to the shoulder of the roadway. The vehicle failed to restart and was towed to the dealer, where it was diagnosed and determined that there was no compression in the engine. The dealer determined that the engine needed to be replaced. The dealer advised the contact that the repair was not covered because the VIN was not under recall. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 126,000.

After a really bad cold snap noticed oil spots on my driveway, after further inspection noticed the oil cooler lines were leaking from the crimps. Got in contact with GM because there was a customer satisfaction program for my year model- N212326940- they told me it did not apply to my truck but it is a know issue, and now I’m having to come out of pocket for it.

Catastrophic engine failure. Engine failed while driving and lost all oil pressure. Nearly cause accident

While pulling a small trailer to go hunting, the engine just lost all power while merging onto the freeway. I had to pull over to the shoulder in high speed traffic because the truck had no power and had an odd clanking sound. When I took it to the dealer for repair, they stated that the lifter failed and also damaged the cam. This required a full engine rebuild. When the dealer went to test drive the truck with the new parts, ANOTHER lifter failed and also affected the cam again which required another rebuild.

On January 15, 2026, my wife was driving our 2019 GMC 1500 Sierra Denali and the lights on the dash came on with the truck losing power. I made to my wife later in the day and was able to drive the truck to the dealership only achieving 15mph for about 5 miles. The Mike Bell Chevrolet Dealership in Carrolton GA stated that my engine was knocking and needed to be replaced. I took my truck the John Thornton Buick GMC dealership on January 22 to get a second opinion and they stated the exact same thing stating the engine needs to be replaced. The dealership is stating the remanufactured replacement issue is over $10,900. My truck has over 271,000 miles.

My vehicle recently experienced a sudden flashing check engine light, severe misfiring, and rough engine operation, creating an unsafe driving condition. An inspection by an authorized GMC dealership, Serra Buick GMC Champaign, confirmed a failed deactivating valve lifter on Cylinder 5, documenting that the lifter ceased movement after a single engine rotation. The dealership advised that the failure necessitates replacement of all lifters and extensive internal engine components, at an estimated cost of $5,650.75. This defect is not isolated, unforeseeable, or the result of consumer misuse. It is directly associated with General Motors’ Active Fuel Management (AFM) system, which has been widely reported to cause: •Premature lifter collapse •Camshaft damage •Severe engine misfires •Loss of power while driving •Catastrophic engine failure

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at various speeds, there was an abnormally loud clamoring sound coming from the engine. There was no warning light illuminated. The vehicle was taken to a dealer, and the mechanic informed the contact that the engine might fail soon. The contact was able to continue driving the vehicle, but the contact was advised to bring the vehicle back if the failure worsened. The following day, the contact stated that the front of the vehicle started shaking with several unknown warning lights illuminated on the instrument panel. The vehicle was taken back to the dealer and remained with the dealer undiagnosed. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 71,000.

Vehicle is having loss of oil issues.

ENGINE COOLER LINE DETACHED FROM CRIMP CAUSING ENGINE TO DRAIN OIL RAPIDLY AND ENGINE SEIZED. THE OIL PRESSURE WARNING LIGHT CAME ON, AND THE TRUCK WAS IMMEDIATELY SHUT DOWN (WITHIN 10 SECONDS). WE WERE PUT AT RISK BECAUSE WE TRIED TO COAST OUT OF TRAFFIC AND PARK IT ON A SHOULDER TO PREVENT BEING STRUCK BY ONCOMING TRAFFIC. TRUCK WAS TOWED TO DEALER WHERE WE WERE TOLD THE ENGINE WAS SEIZED AND WE WOULD HAVE TO PAY FOR A NEW ENGINE. DIGGING INTO THIS FURTHER, GM HAD PUT A SERVICE BULLETIN FOR THIS EXACT ISSUE OUT ON THIS YEAR OF TRUCK. (N212326940-01). I BROUGHT THIS UP TO THE DEALER AND THEY TOLD ME THAT MY SPECIFIC TRUCK WASN'T INCLUDED IN THE RECALL AND WOULDN'T BE COVERED.

Engine started knocking so took to the GMC dealer they said the engine needs to be replaced.

I have the L87- 6.2 V8 and my crankshaft bearings burned up at highway speeds and the truck shut down. The is a massive recall on this engine for this reason but does not include the 2019 model and it most definitely should. The issue started in 2019 (not 2021).

Manifold. I use my truck daily for my job. I was coming home every night, tired with headaches not knowing why I was being poisoned. The manifold was leaking in the cab of the vehicle. This is a major safety issue when it’s poisoning people.

6.2L engine lifters were replaced in 05/24. Complete engine failure in 09/25. Engine replaced with remanufactured engine. Fuel pump fail while driving on highway. Engine shutoff completely while driving 70mph. Prior to shut off engine struggled going over a bridge on I95 at 70 mph. Fuel pump failure happened 11/25 after ~900 miles on new engine. All service, maintenance and repairs completed by GMC dealership.

I have a 6.2 engine that failed just recently had to get it rebuilt after hearing all the recalls for the other 612’s also have a 2023 GMC Denali Yukon also what does 6.2 on the recall

While driving vehicle at highway speeds the vehicle shut down without any warning

The service engine light came on while driving on the highway. We took it to a GMC dealership and they scanned to determine a short in the oil pressure sensor. This was replaced then during the final check they found metal in the oil. The warranty company made them tear the engine apart where they found multiple area where the metal was worn down including the gaskets, rings, and cylinders. The warranty company continues to fight us to cover the whole invoice.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving 75 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. There was an abnormal sound coming from the engine. No warning lights were illuminated. The contact stated that on a separate occasion, while driving at an undisclosed speed, blue and white smoke was coming from under the hood. The contact pulled over to the side of the road, and the smoke ceased. The contact opened the hood and inspected the engine. The contact restarted the vehicle, and the smoke started coming from under the hood again. The messages "Parking Brake Service Required”, “Reduced Steering Assist”, “Proceed with Caution" were displayed, and the check engine warning light was illuminated. The contact stated that while driving and coming to a stop, the engine jerked abnormally. The vehicle was taken to an independent mechanic, where it was diagnosed with oil intrusion into the spark plugs with a misfire in cylinder #6, and the piston rings were fractured, and there were scratches on the cylinder walls. The vehicle was not repaired. The contact stated that the failure persisted. The manufacturer was made aware of the issue. The contact was referred to the dealer for assistance. However, the contact was concerned about the damage to the engine and feared driving the vehicle. The vehicle was not taken to the dealer. The failure mileage was 71,799.

Luckily, truck was sitting in idle waiting on my wife and daughter to leave the store so we could go home. Engine began to run rough, and then died. Would not restart. Had this happened just a few moments later while in traffic, it could have been catastrophic for our family. GM dealership said the engine was nearly locked up and needed a new long block and several other ancillary parts. So far, we have no internal pictures and nothing was harmed externally.

Complete engine shutdown after multiple issues of truck using 5 quarts of oil in-between oil changes. Engine was rebuilt at dealer at out of pocket cost over 10000

There is a Service Bulletin on the Engine Oil Cooler line failure. It leaks or becomes detached form the crimp joint. Mine is leaking from the crimp joint and GMC says my VIN is not covered under this bulletin. N192220080 if this is a known issue on these vehicles why am I having to cover the costs for replacing a known faulty part. GMC said I could bring it in and have them perform the repair at my cost. The nearest service department is 100 miles away. I have it at a local mechanic that says it will cost anywhere from $1300 to $1500 to perform the repair.

5.3L V8 L84 Engine, 101,300 2nd owner Slowed down for traffic and was accelerating back to 80 when sudden loss of engine power coinciding with cylinder failure happened. Dealership determined lifter was collapsed. Lifter 1 failure at interstate speeds. Collapsed lifter caused damage to camshaft required both components to be replaced.

I had to get the cam and lifters replaced in the engine.

Friday night coming home. While entering my driveway. The check engine light came on. The engine sounded really bad. Rough idling. Saturday morning. Took it to a mechanic shop. While on my way to the shop, the truck had loss of power. The first mechanic shop told me that the truck was having engine failure. Was not sure at the time but the L 87 is known for having lifters and bearing failure. Monday the truck was taken to the dealership Novak motors. For extended warranty, repair or possible engine replacement. It has been two weeks. Have not heard anything yet. But the timing of the incident was good. Because the engine failed when I was pulling in to my driveway.

ECM COMPLETELY FAILED DURING DRIVE NO PREVIOUS WARNINGS

On November 25th, 2025 I had my wife, kids and baby grandson in my truck driving approx 50 mph when the trailer brake light appeared on my dash. I thought that was strange since I was not pulling a trailer. Shortly after my truck felt like it was going to stall and complete loss of power. I pulled into a turn lane and coasted into a gas station parking lot. I put the truck into park and turned the motor off and then restarted it. The truck was running extremely poor and sounded like it had rocks loose in the motor. I had it towed into an automotive repair facility I have always used and they told me my engine was gone and had to be replaced. I had been told by an oil change company a few weeks before that this engine was under a recall. I checked into it but this model year was not included. I did further research and founded out that this model year was under review. Something needs to be done as I was lucky this was not a busy highway or this could have ended worse.

While traveling in high-speed traffic, the vehicle experienced a sudden and catastrophic mechanical engine failure without any prior warning lamps, messages, or symptoms. The failure manifest as a loud, rhythmic ticking and knocking noise immediately followed by a sudden loss of propulsion and severe engine shuddering. Safety Risk: The loss of power occurred in active traffic, creating an immediate crash hazard. Because the engine could no longer maintain speed, I experienced multiple near-miss collisions while attempting to navigate the vehicle to safety. This "limp mode" state placed myself and other motorists at extreme risk of a rear-end or side-impact collision. Component & Inspection: The failed component is the engine (6.2L L87 V8), specifically believed to be a failed lifter or bearing within the Dynamic Fuel Management system. The vehicle and its engine are currently available for inspection. Confirmation: The problem has been confirmed by a certified dealership service center. Diagnostic codes include P0300 (Random Misfire) and P0016. The dealership identified the symptoms as consistent with internal mechanical failure.

We were driving down a farm to market road at about 50 mph pulling an empty cattle trailer when we had a severe power loss, lots of dash lights and warnings. I noticed white smoke coming from the tail pipe. We limped it back to the house and unhooked the trailer and idled it into the Chevrolet dealership in Portland TX. The dealership just called and they said the #5 cylinder failed, there is metal in the oil and it will need an engine replacement at a cost of over $11,000.00. The truck is a 2019 and has just over 54,000 miles on it. No engine should fail at 54,000 miles and no company should sell one that does. Pulling a loaded trailer at highway speeds with a total engine failure could easily cause death to passengers and livestock. 12122025

FOR THE LAST YEAR i BURN BETWEEN 2 - 3 QUARTS OF OILL BETWEEN OIL CHANGES. DEALER KEEPS TELLING ME THIS OS NORMAL. I KNOW IT IS NOT NORMAL AND I'M AFRAID OF ENGING FAILURE WHILE ENGINEERING RECALL IS IN PROCESS

Main bearing failure

GM installed a 2023 6.2L engine in my 2019 GMC. The engine locked up while I was driving it. It had about 54,000 miles on it. There is a recall on the vehicles with the 6.2 GM engines that were made between 2021 and 2024. However since they installed it in my 2019 they are telling me they won't warrant it because the recall just list the vehicle year and not the motor year. This is not right.

Just had my 2019 GMC sierra 1500 Denali engine fail. My truck has 75k miles oil changed regularly no codes, issues or dash lights. Recently had it at GMC I Folsom California for a rear window replacement. Full inspection with no issues and nothing found wrong. Sunday 12/7 with my girlfriend and son in the truck about to get on the freeway felt a weird shift as I got on the freeway on-ramp. As I went to accelerate I had my traction control lights come on, lost power, and flashing check engine lights limped the truck off the side of the freeway and exited to a gas station. My truck wasn’t leaking anything and oil pressure was good but it sounds like popcorn was being made in my engine when it was on. Had my truck towed to Folsom GMC and yesterday 12/8 got a call I need a new engine. Called GM corporate to talk to them and opened a claim. GMC dealership got an initial help with 15% of the bill telling me I would need to pay $13,315. Talked to the service advisor and they put in a request for help from GM. Today at 9:00 a.m. they offered 50% coverage and I was able to get a little more but it still has me paying $7,500 and it will be 2-3 weeks to get the repair done. The dealership also will be getting me a loaner vehicle. This dealership has not been great but with this they are trying and doing a lot. However 75k on a truck that does not haul or have heavy use and is 7 years old with no prior issues is crazy. I was told cylinder 8 showed a misfire. Once they opened it up there was damage to the pushrods, valves and lifters with significant metal throughout the motor. I’m still waiting for corporate GMC to get back to me and hoping they will help or offer more money off as this is still a very large bill for a single father of 2 around the holidays. I bought the truck used with about 32k on it in 2022 and have had no mechanical issues or codes related to the motor or transmission.

Engine malfunction, had dealer look at truck and they said I needed a new engine, check engine light came on and a knocking noise appeared suddenly. Reading about 2021+ sierra with 6.2 engine that has a recall with the same problem as mine. Wondering why that recall wasn’t extended to my truck as well.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving approximately 60 MPH, the vehicle started shuddering. The check engine and stabilizer warning lights were occasionally illuminated. The contact pulled over into a nearby gas station, and the vehicle was later towed to a local dealer. The vehicle remained at the local dealer, where it was diagnosed and determined that the engine needed to be replaced. The vehicle was not repaired due to the cost. The local dealer informed the contact that the failure was related to NHTSA Campaign: 25V274000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 49,000.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at various speeds, the vehicle hesitated and failed to properly accelerate while the accelerator pedal was depressed. No warning light was illuminated. In addition, the contact was aware of excessive oil consumption and the vehicle was previously taken to a local dealer. An appointment with the same local dealer was scheduled to inspect the vehicle. The vehicle was not yet repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 87,000.

Engine oil cooler lines leaking from crimp joints. "Oil Pressure Low Turn Vehicle Off" display showed on dashboard. Oil is present all over the bottom of my truck as well as a trail along the road and the parking lot where I parked it. I have not brought it to the dealership yet. There has been a Customer Service Program notice about this issue, I got my truck after the issue was sent out so I did not get the letter or supposedly this truck is not part of it even thought it is the exact issue. Customer Service Program number N212326940.

Around June 2025 under normal driving my truck displayed engine oil low which I promptly checked the oil to find that it was in range. The light later went off but I still brought it to the dealership to which they could find no issues. From there over the next month or so the truck developed a low end popping sound on start up and at my next oil change at the dealership in August of 25 I asked them to listen to see if they heard it and could recommend a course of action. They reported not hearing anything. On October 19th I had my family in the truck with me and during normal acceleration the engine had a loud pop sound and lost power. Every warning light came on and I pulled over promptly when safe. I had it towed to the dealership and their initial diagnosis was a failure on cylinder 4 with a suspected failure of either the cam shaft or lifter. Given the poor design of the lifter I didn’t want to go back with the OEM lifter so I had it towed to an aftermarket shop. It is there now and they are in the process of tearing down the engine. After watching a video on YouTube I fear my truck is part of the connecting rod bearing failure under PE25-001. My understanding is there is an official investigation into the trucks outside the initial recall. I wanted to submit this for your review as the truck only had 74,000 miles. Freeman GMC in Grapevine, Tx has performed all the maintenance and should have documentation.

Informant system tells me that the engine oil is low every time right at about 1,000 miles after I change the oil. There have been times where the engine has hesitated to accelerate shortly after receiving the message. I've taken truck to be serviced with no oil leaks found. I purchased this truck with 21,000 miles on it, and it's been doing this ever since I've had it.

While driving my Sierra AT4, my engine shut off with no previous indication of a problem. The dash simply said to restart the vehicle. Unable to do so, I coasted the vehicle into a parking lot. Once it was diagnosed to be a defective engine, I replaced it with a new GM long block assembly paid out of pocket as the vehicle had 210,000 miles on it and was well out of warranty coverage. The first replacement engine lasted 15,000 miles before developing a spun bearing in the engine. GM did cover replacement of the engine assembly. The 2nd replacement engine was installed 12/2022 and lasted until 2/2025. Same engine seizure problem as the original due to the bearing failures that plague this engine series. Engines have always run 0-w20 Mobil1 synthetic as recommended by GM. Vehicle is currently waiting for GM to make a decision to cover it or not.

The starter started dragging about a year ago and on November 12 the 2019 GMC truck would not start. We had it towed to Harper GMC in Minden, La. They told us the motor was locked up. This vehicle has a little over 40,000 miles on it. Has always been parked in a carport out of the weather and still looks brand new. I see where 2021 GMC trucks have a recall on the motor and this is the same problem with our 2019.

2019 GMC Sierra that was not on recall list for engine, had same exact issue as the recalled engines. We were driving, light came on and it wouldnt work properly. We immediately took it for diagnoses and it was same reason as the recalls, however our engine wasnt on the list. We just had to pay 14K cash for our truck engine and repair. We purchased 5/24 with 78K miles and it stopped at 94K miles. We didnt have the truck for 5 months because of the motor recalls were backed up. GMC refusing to reimburse us even tho there is still issues with that motor

Truck cut out going across the road almost got hit due to the vehicle stalling then about a mile down the road the check engine light came on parked it took it to my mechanic and after the incident it was throwing a cylinder misfire code. Cylinder one when the mechanic got in there was completely shot and I had to have a new motor. No warning no lights could have potentially caused a major accident.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at 25 MPH and making a turn, the vehicle lost motive power. There were several unknown warning lights illuminated after the failure. Upon investigation, the failure was related to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The vehicle was towed to an independent mechanic, where it was diagnosed with lifter failure and camshaft damage. The vehicle was repaired. The local dealer was not contacted. The manufacturer was contacted and opened a case, and referred the contact to the local dealer for assistance. The failure mileage was approximately 86,960.

Engine problems (Oil, crankshaft, loss of propulsion) similar to that of recalls in 2021-2024 models.

It is the same issue with 2021-2024 6.2L engines that have already been recalled. I have to replace lifters and cam because of the issue.

Driving at night when the low oil light came on then engine failed. Engine is now blown and will not run. Engine L87.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated, and the engine seized. The vehicle was taken to an independent mechanic, where it was diagnosed with a misfire in cylinder #3 and engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact referenced an unknown recall with a similar failure; however, the VIN was not associated. The manufacturer was not made aware of the failure. The failure mileage was approximately 101,000.

My truck had a ticking, knocking on the bottom end of the engine as I was driving home with my children. When i pulled into my driveway, the low oil pressure light came on and the truck began to stall while the back of the truck was till in the roadway. Several cars had to come to a complete stop to avoid hitting us, right where my children were seated in the back. I was able to limp the truck into my driveway. The following day I attempted to start the truck. It started hard and immediately gave me a low oil pressure light. I shut the truck off and called the dealership. The dealer wanted $3000 to just diagnose the problem. I had to pay out of pocket to get the truck towed to a private shop. The private shop started the truck and attempted to drive it to reproduce the issue. The truck engine seized and I had to pay to have it towed back to the shop. I then had to purchase a brand new crate engine from GM and pay to have it installed. The seized engine would not even roll over, so the cost of labor was increased due to them not being able to unbolt the torque converter on the engine. My engine is a 6.2l and GM told me based on by truck being a 2019, that it was not included in the recall. So far, the engine replacement has cost me $19,000.

Was driving at about 55 mph and vehicle popped up with warning and said shift into neutral to restart. I tried to and all power turned off. This was at around 8 p.m. so no headlights or anything. Luckily got it stopped without hitting anything. Had vehicle towed and motor was locked up. Spun bearing they said. Same issue apparently as other 6.2 liter engines have been having.

Engine Failure. 1. The lifter in cylinder 5 failed (dropped) this prompted me to bring the truck in initially. 2. Upon further inspection all the cam bearings were scored and out of spec. Waited 4 months for an engine replacement from GM. Eventually I cut my losses and sent the block to a machine shop. This was all paid out of pocket. Truck had 74,000 miles on it.

Engine suddenly lost power at highway speed. Truck was still running so I was able to get off the highway. Engine failure was caused by bent lifter. Lifter failure also caused damage to the camshaft. Vehicle was at dealership for significant time with a large repair bill that GM is not willing to cover due to the vehicle being 5 weeks out of warranty

I keep getting low oil warning even after oil change

Sudden lost of power while driving. I was driving on the i95 and out of nowhere the vehicle shut off in the middle of the highway. It was a scary moment because I could of been in serious accident. All the engine signs were displayed on the dashboard.

Defective out cool oil return line on v8 6.2L engine. Causing the truck to lose oil immediately due to being under pressure. Caused complete engine failure and required a new engine. That took 4-5 months to complete. Located in park city Utah a cold weather location. Not part of the 2019 recall for the same failure that gmc did in Canada and Alaska for a defective cool oil return line. When I called gmc to talk about it they referenced my vin and said it had no open issues and that they couldn’t talk about it.

At approximately 61,500 miles, the engine malfunctioned while cruising on a 4-lane highway at 45 MPH. The problem was diagnosed by an independent mechanic as a crankshaft rod bearing failure. This failure happened despite all recommended maintenance being performed with specified parts. This failure caused a safety concern as the vehicle was in motion at the time of the failure, increasing the potential for a collision due to the vehicle becoming disabled on a highway. The engine was replaced at a cost of approximately $13,500 parts and labor. Vehicle was out of service for two months due to a waiting list on replacement L87 engines.

My engine has a loud knocking/ticking noise. I have had one mechanic look at it. He has me taking my truck to a dealership this week. He believes the known issue with GMC's 6.2 engine is taking place in the engine in my 2019. From a verbal conversation with the dealership, they believe the same. I was advised to complete this form ASAP.

While towing a trailer on Highway 77 in northern Wisconsin, my 2019 GMC Sierra 1500 experienced a sudden engine failure. The dashboard lit up with alerts for the engine, transmission, ABS, and traction control. I safely pulled over in a 55 mph zone with narrow shoulders and heavy truck traffic due to nearby road construction. The truck lost all power, and I had to block the driving lane to transfer the trailer to another vehicle, creating a hazardous situation. There were no prior warnings or issues. The truck had regular service at independent shops, and I had checked and topped off the oil that morning. Lahti Towing & Service recovered the vehicle, changed the oil (no metal shavings), and replaced the camshaft sensor, but the truck still wouldn’t start. They then towed it to Rhinelander GMC, where a broken timing chain was diagnosed, requiring a full engine replacement. The vehicle is currently at Rhinelander GMC and available for inspection. I have photos of the dashboard alerts and data from the GM app documenting the incident.

Pulled up to a stop sign, the engine shutoff and would not restart. Had the vehicle towed to the dealership. Received a call that the engine will need to be replaced. The code is a P0016. Same code as the other 6.2 L87 GM motors, but is not currently under the recall. They found no metal in the oil pan and the engine only has compression on cylinders 2 & 8. Make no mechanical sense. Before this, I had no engine lights, I had no oil burning, I had no smell of oil and the truck ran fine. No loss of power or any other issues.

I have a loss of power in the motor with engine codes diagnosed by the dealership of P0016, P0017. These are the same codes and symptoms that are included in the 2021 through 2024L 87 6.2 L motor recall. My motor is a 2019 edition but having the exact same issues. I know these are the same motors and is having the same issue. started having loss of power in May 2024 with engine codes coming in September 2025.

Engine developed a clicking sound. Took to dealership and was diagnosed with rod and bearing damage requiring an engine replacement. Was fortunate to have inspected before engine failure while driving. No warning before the failure. I believe there is a known issue with the 6.2 L engines.

The contact owns a 2019 GMC Sierra 1500. The contact stated that the vehicle was taken to the dealer for an oil change service. The contact stated that while in the process of picking up the vehicle, the dealer informed the contact that the vehicle had failed to start. The dealer determined that the engine needed to be replaced and provided an estimate for the repair. The vehicle was not repaired due to the cost. The manufacturer was not notified of the failure and informed the contact that the VIN was not included in a recall. The contact was referred to the NHTSA Hotline for assistance. The contact related the failure to NHTSA Action Number: PE25001(Engine, Engine and Engine Cooling). The failure mileage was approximately 115,000.

As I was turning left from a county road to a highway my truck died on me. I was able to push it out of the road with the help of two other motorist. This is the second time in 4 months were my truck broke down due to engine failure. I had the motor repaired the first week in June 2025 for a similar instance. My truck is at the dealership right now awaiting repair because GM will not recognize that my 2019 6.2 L87 engine has the same known defects as other 2019 6.2 L87. This is a safety issue which GM refuses to acknowledge on my vehicle.

Driving 30 MPH on 4 lane city road when engine shut off with many warning lights. Vehicle dead in the road, needed to be towed to dealership where I was informed that the engine had "locked up" They said they have seen many of these 6.2L engines locked up.

One of the lifters collapsed resulting in catastrophic engine damage

Our GMC engine with VIN# above needs to be recalled due to the failed Active Fuel Management (AFM) lifter which resulted in misfire’s & engine failure. GMC's defective lifters create a safety concern due to potential engine stalling and power loss while driving, which can lead to dangerous traffic accidents. While GM has implemented extended component coverage for some issues and issued a recall for a related problem with L87 V8 engines, they have not with our GMC Sierra with the VIN# listed above, which has the same safety concern. Our GMC is currently at the dealership and we are determining next steps. Thankfully, my husband pulled over on the side of the road and turned the vehicle off before complete power loss. There was not much notification with the engine light prior to the incident. This could have ended very badly with my husband being injured or even worse my three children also being injured.

Same issue as the 2021-2024 model. I was driving home from work , it lost all power mid turn , traction control , ABS & engine light are on. It’s now ticking and knocking Here’s a list from the shop on what’s wrong with it. Estimated total to fix it is 12k [Other]: camshaft, all lifters, all lifter guides, cam retainer plate, cam sprocket bolt/valve, 4 pushrods, 3 rockers arms, balancer bolt, head gaskets, head bolts, valve cover gaskets, exhaust manifold gaskets, exhaust seals, exhaust manifold bolts x 10, intake gaskets, high pressure fuel lines, water pump gaskets, oil pump passage seals and suction seal, a/c belt, drive belt, a/c condenser line seals, 3 bond silicone, coolant, earl and filter Speak with your service advisor for more information on this recommended service.

Engine failure; according to GM Mechanics, the lifters failed and this resulted in a broken push rod. Vehicle is now waiting for a new engine; $8,882.00 out of pocket from owner, because current recall does not include the 2019 or 2020; only the 2021 and newer of the same enginee, with the same exact failures. Vehicle has under 75,000 miles and has been serviced for oil change and engine maintenance at GM dealership since purchased. Several different mechanics, on with over 40 years of GM Engine experience, have evaluated the engine all deeming the same failure. Dealership confirms that there is a 6 to 8 week lead time for the new engine because, quote, "there are so many being replaced for the existing recall". I received no warning from the vehicle systems, no information from the local GM dealership or any other communication that my vehicle was at risk for this failure. I am without a vehicle for likely 2 months and will be 'out of pocket' almost $9,000.00 when this is done. This is my second Sierra Denali 1500 in the past 10 years, and my >10th GM vehicle to own, and for the 'Premium Pick-up Truck' on the market, I have always expected the finest quality and service, and this situation changes everything.

Engine failure while driving.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving approximately 10 MPH, there was an audible chime heard, and the message "Stop Engine - Zero Oil Pressure" was displayed on the instrument panel. The vehicle was turned off and towed to a dealer, where it was diagnosed that the engine had seized due to a lack of engine oil. The contact was informed that the engine oil cooler line had detached from the crimp and that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 80,000.

Check engine light came on for the first time. Engine started knocking, had loss in power, took it to the closest shop. Initial report was lifter failure, after taking apart the engine for lifter replacement they deduced the bad lifters also were accompanied by camshaft damage, and bad heads. Overall resulting in engine replacement being required. Again, first time the check engine light has come on.

While traveling on the freeway at freeway speeds and with the cruise control on, on 7/22/2025, my vehicle abruptly start making an odd noise, the steering wheel started to vibrate / move as if I had a flat tire. I safely existed the freeway and pulled over to investigate, there was no flat tire yet the vehicle still made the noise and experienced issues when the throttle was applied. I proceeded to call a tow truck, and have the vehicle towed from Alpine, CA to Temecula and Temecula Valley GMC. While there the dealership gave me an initial diagnosis of "Miss fire in cylinder 8". We left the vehicle, and awaited more information. The next day I received a phone call stating that they needed to do an engine teardown to completely diagnose the issue, to the tune of approx. $1,500. In the dealers words, they needed to do the teardown to determine if "They could salvage the engine, or if it had to be condemned". The following day I received another call stating that the engine needed to be completely replaced due to a collapsed cylinder. The estimate for this work is over $13,000. the truck is 6 years old with 58,XXX miles.

Yates GMC Replaced my engine a couple of years ago under warranty and my truck has never been the same. I’ve been to the dealer multiple times. The drive, the way it operates always making cranking snapping sounds.

The contact owns 2019 GMC Sierra 1500. The contact stated while reversing and depressing the brake pedal, the vehicle stalled. The contact shifted to park(P), turned off and restarted the vehicle, but the failure persisted. The vehicle was towed to an independent mechanic, where the starter was replaced, and the contact was informed that the engine needed to be replaced. The vehicle was then towed to the dealer, where it was diagnosed that the engine had failed and needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Action Number: PE25001 (Engine, Engine and Engine Cooling). The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 84,000.

On 7/17/25 vehicle was taken to Star Buick/GMC in Easton PA for rear brakes and an oil change. This vehicle has 49,981 miles on it. I was told after the oil change the tech took the truck for a test drive. I was told he made it about 20 feet and the engine seized. Either the tech forgot to refill the crank case or it is another GM 6.2 disaster. Please advise as the dealer is quoting over 12K to replace engine.

My 2019 GMC Sierra 1500 truck exhibiting all the same signs as the recent call for the same 2021 truck recall according to the dealership. This is for the L87 V8 engine. The 2021 engine was used in the 2019 trucks but again the 2019 trucks are not a part of the recall. My repair bill is upwards of $10,000 and diagnostics is upwards for $4,000 even though all are aware of the recent recall and my truck having the same engine.

The contact owns a 2019 Chevrolet Silverado 1500. The contact stated that while driving 70 MPH, there was an abnormally loud sound coming from the engine compartment before the vehicle lost automotive power. The vehicle was towed to the local mechanic who diagnosed the vehicle with engine failure. The contact was advised that the engine needed to be replaced. The vehicle was not yet repaired. The manufacturer and local dealer were not notified of the failure. The failure mileage was 126,000.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving on the highway at 60 MPH, there was an abnormal knocking sound coming from the engine. There was no warning light illuminated. The vehicle was taken to a local dealer where the vehicle was diagnosed, and the contact was advised that the camshaft and lifters were faulty and needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 73,000.

Vehicle motor suddenly stopped working. Vehicle was pulled into a driveway safely then wouldn’t crank anymore.

- 6.2 engine lost propulsion & warninng light on dash flashed about 3-5 times. After that the trucks engine completely malfunctioned. When this happened i was traveling at 70mhp on interstate I-69 when the the truck lost power to the engine, steering and power braking. The truck was inspected by a GM dealer and they found the engine had blown & with that it caused damage to the coolant system & to the catalytic converterin which all was replaced at full customer cost. Prior to the engine failure 2 other times it lost power and had a rough ilde and trouble starting . 1st time the dealer could not replacate the issue the next time found a camshaft postioning sensor was bad which was placed at customer cost.

Truck is at the Jim Gauthier GMC dealership on Mcphillips in Winnipeg, Canada. Engine endured catastrophic failure and is currently waiting for a new engine.

The contact owns a 2019 GMC Sierra 1500. The contact stated while driving 10 MPH, the vehicle made an abnormal ticking sound. The contact stated that the failure also occurred upon starting the vehicle. The vehicle was taken to the dealer, where the camshaft and lifters were replaced, and other unknown required repairs were performed. The vehicle was repaired. The contact related the failure to NHTSA Action Number: PE25001. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered. The manufacturer referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 52,029.

Driving down the highway at approximately 65mph, when I accelerated to 70mph my truck began to shake violently flashing a check engine light, service parking brake light, and service ESC light, the engine began to violently shake and make a rough knocking noise Had the vehicle towed to the mechanic where I was informed that the lifter on cylinder 2 had collapsed and that it would be $12,500 to replace all 16 lifters as well as the cam shaft on my engine My safety was at risk as my truck went into a “limp” mode and essentially shut off on the side of the road, others were at risk due to my truck becoming a hazard, the tow operator was at risk having to pickup my truck on the side of a 70mph freeway The only check engine code I had was a misfire on cylinder 2 Dealership stated that it was a known issue but that my truck was outside of warranty, and not apart of recall so there was nothing they could do Had truck towed to different shop that is repairing the problem Requested that all parts be kept in case of inspection request

The contact owns a 2019 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed, but the vehicle failed to accelerate as intended. There was no warning light illuminated. The vehicle was driven to the shoulder of the road. The vehicle was towed to the dealer where it was diagnosed with metal shavings in the oil pan and engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact related the failure to an unknown recall. The manufacturer was made aware of the failure but no assistance was provided. The contact was advised to contact the NHTSA Hotline to report the safety failure. The failure mileage was approximately 120,000.

There is a common lifter failure issue with the 5.3 V8 engine in these vehicles and local mechanics I've spoken too are very aware. The 6.2L was recalled for the same reason. GM would not honor or cover any of this as it was "out of warranty", however, I strongly feel this should be investigated.

The engine failed and needs full replacement. Known GM issue with lifters. Engine style 6.2L. We contacted GM and they are not responsive and they provided a claim number. To repair is over 9,000$ and I still owe about 7000$ and the truck was purchased brand new. GM cannot furnish a replacement engine. The dealer showed 34 in stock when ordered. The dealer contacted us later stating GM canceled the order and they do not have an ETA when they can send an engine for the vehicle. We are paying on a vehicle that is stuck at dealer and cannot be repaired.

I had a 2019 GMC Sierra with a 6.2L gas engine. The engine failed while I was driving on the highway at 65 mph. The truck began shaking badly, check engine light and all kinds of warning lights came on. I pulled over and drove slowly 10 miles to a GM dealer who then told me that I should not be driving the truck due to safety concerns and it could lose power and lead to an accident. I had it towed back to my home town ($500 later) to the GMC dealer where I purchased the truck. They told me the same thing, it could not be driven. GM has since recalled vehicles with this same 6.2L engine manufactured in model years 2021-2024. I believe that recall should have included my 2019 truck. I was at risk of serious injury or death due to engine failure, fortunately I did not crash. However, I lost $14,000 in value of the truck thanks to the faulty engine. I believe the recall should be expanded and I should be compensated by GM for the engine failure. I have attached the estimate for the repair.

The engine lifters failed with out notice twice. Upon inspection of the vehicle it was determined that there was no issues that contributed to this failure. I paid to have the problem fixed within a year the same problem happend again. I was on the expressway and my car just shut off with out warning while cruising at expressway speeds and refused to cut back on for about 2 hrs.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed and slowing down to stop, the vehicle suddenly shut off and failed to restart. The vehicle was eventually towed to the residence. The cause of the failure was not yet determined. The manufacturer was notified of the failure, but no assistance was offered. The local dealer was not yet contacted. The contact was informed of the NHTSA Action Number: PE25001 (ENGINE, ENGINE AND ENGINE COOLING). The contact stated that the vehicle had experienced the failure listed in the NHTSA Action Number. The failure mileage was 115,000.

I was driving down the road no lights on the dash, when suddenly the dash lit up saying shift to park to restart. Ended up having to hurry and shift to neutral in order for the vehicle to not cause an wreck and coasted into parking lot. I tried to restart my truck and engine would not start. Had it towed to a dealership and lifters had ate through the cam shaft. Luckily I had an extended warranty and only had to pay a deductible for a new engine. They put a new engine in and I already have a rattle coming from it with less then 10,000 miles on it.

My engine suffered a catastrophic failure, at 139468 miles. 2019 GMC Sierra Denali 1500. I had the engine replaced with a new engine date June 2024 GMC 6.2 engine failures is happening with more than just 21-24 models years.

I am writing to formally document an ongoing and serious issue with our 2019 GMC Sierra 1500 (VIN: [XXX] ), which I strongly believe may be related to the current GM recall involving L87 V8 engines—despite my vehicle not yet being included. Early last year, our family experienced a sudden and frightening loss of power while driving at full speed on a curve, with our children and their car seats secured in the back. The vehicle lost power abruptly, accompanied by a loud ticking noise from the engine. This incident could have easily led to a serious accident and was terrifying for all of us. Since that time, the truck has spent more than half the year in and out of repair shops. The initial repair estimate was nearly $20,000—unmanageable for us, especially since the vehicle is paid off. Fortunately, a family friend was able to repair it for significantly less, but the problems have persisted. Most recently, the check engine light returned and we experienced another episode of reduced power, suggesting an unresolved or recurring failure likely tied to internal engine components such as the long block, crankshaft, connecting rods, timing chain, or camshaft. This truck is essential for our family’s daily life—including commuting to work and school, and especially out-of-town travel. Our other vehicle, a 2007 Honda Accord, is much smaller and insufficient for our growing family. This ongoing issue has caused substantial disruption, stress, and financial strain. It has also delayed our ability to upgrade to a larger family vehicle, something we had planned and budgeted for before this ordeal. Given the severity and duration of the issue—and its apparent connection to the same engine problems affecting newer models—we want to ensure this situation is documented with the NHTSA and GM. We sincerely hope that the scope of the current recall will be expanded, and that appropriate relief or support will be offered to affected vehicle owners like us. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was driving on the highway at 60mph and the engine shut off. I was fortunate enough to be able to get the truck off the road without incident. The instruments instructed me to try to start the vehicle again. Upon doing so the engine made very loud and erratic knocking noises and I shut it off. I towed the truck to the GMC dealership where they told me the engine had thrown 2 rod bearings. They told me this was VERY common with the 6.2L engine. The truck was extremely well maintained with all services at the dealership, and only had 70,000 miles on it. GM quoted me $15,436.00 to replace the engine. I did open a case with GM when the incident occurred. Case # [XXX]

2019 GMC Sierra AT4 with 6.2L engine failed while driving 45 mph. No warnings and no check engine lights prior to engine failure. Coasted off the road, engine would not restart. Upon attempted restart the check engine light came on showing code P0016 for crankshaft/camshaft position sensor. Towed vehicle to dealership where engine replacement was required.

I was driving my truck from lunch and out no where the truck stalled and did crank back had it towed to the dealership and said needed new engine because the timing had jump..

During city driving my L87 engine losses power during acceleration. The start and stop feature makes loud scratching noises when it starts up.

While driving on the interstate and picking up speed from 50mph, the vehicle suddenly shuts off without any warnings and causing a safety issue of stopping immediately in traffic in the middle of the expressway.

Engine failed while driving on the interstate. No warning lights and no known mechanical issues. Dealership maintained vehicle. Towed to nearest GMC dealership to be inspected and repaired. Tech told me before looking at it that it was probably an engine failure. He disclosed that my model engine was problematic and engine failure was common. He was right. My family could have been killed had I not been able to guide a powerless vehicle off the road out of traffic. A replacement engine was quoted for 15k. However GM did not have any and no eta on when they would. A used engine with 80,000 miles and only a 12,000 miles warranty was offered for 11k. I could afford neither as I’m still paying 1k a month for the vehicle. They are recalling vehicles with the same engine but only back to 2021. I’ve spent over 15k to get my truck back functional. I believe good morning should be held accountable. This known issue was never disclosed to me pre purchase or I would not have paid 80k for a truck to last only 120,000 miles

I was experiencing rough gear shifting jumps and low power/acceleration but it was spotty and not continuous. While I was traveling on cruise control, my truck started misfiring. Once I got home the whole truck was shaking in place. I popped the hood and noticed the engine itself was shaking on the motor mounts. On the way to the mechanic, several lights (including check engine light) came on (the codes thrown were P0300-P0308). The mechanic attempted to clean the fuel injectors (that were replaced 30k miles go due to failure as well), but that did not solve the misfire. I was told the cylinder was dead, and upon inspection of the oil filter there were metal shavings throughout it and the engine, as well as a bent cam shaft. All symptoms and issues I've experience, which resulted in a complete engine swap, are similar to those of the 2021-2024 GMC Sierra 6.2L engines that were just recalled. I would like to know how many other 2019-2020 5.3L engines have had failure before 90k due to similar issues and if there is a larger concern here.

Engine failure and loss off control resulting in me almost getting into an accident from lifter problem identification from a certified mechanic. Resulting in a $4100 repair

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle made an abnormally loud sound and was shaking abnormal. The vehicle lost motive power and failed to restart. No warning light was illuminated. The vehicle was towed to the residence, and the battery was replaced, but the failure persisted. The vehicle was towed to the dealer, who determined that lifter #7 had no compression and that the crankshaft was bent. The vehicle was then towed to an independent mechanic, who also determined that the crankshaft was bent and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 106,000 .

My gmc truck was stopped on a red light on a city street and suddenly the engine just shuts off, I have to restart the truck. This is not the first time that it did that. I can't imagine if this does happen on the freeway.

Trucks engine died going down the interstate no warning lights just died. Had it towed to the GM dealer where they told me the engine failed and the oil pan was full of metal. This was after I spent $5000 at the same dealer repairing it because it wouldn’t start. It’s at Ross downing gmc in Hammond Louisiana now for the 2nd week.

2019 gmc sierra 5.3L engine had lifters collapse at 81k miles causing internal damage and forcing the dealership to have to replace the engine at my cost-have heard there have been many folks with the same issues

Engine issues at 35000 37000and failure at 65000 miles V8 6.2 L engine. Cans and lifters replaced at $6100 GM refused to cover. Car immediately traded in for 2024 Silverado same occurrence on exit ramp 15000 miles engine replaced this year under warranty. Would like recall extended warranty to 2019 or before and be reimbursed for $6100 at a minimum

Engine 6.2 liter needed to be replaced. Connecting rod and the engine froze up.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while his wife was driving at an undisclosed speed and approaching a stop, the vehicle lost motive power. There was an abnormal exhaust odor and smoke coming from the exhaust pipe. The engine and fuel lights were illuminated. The vehicle was towed to the local dealer and was diagnosed with a misfire in cylinder #5, and the exhaust lifters and camshaft needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 50,000.

I was driving back from getting breakfast and the truck started to smoke and the truck just shut off on the street. As soon as the truck shut off, I received an alert on the dash that told me not to exceed a certain speed, but the truck was not moving at the time. I tried to restart the truck and I received another alert that said to put the truck in neutral and I ended up having to push the truck to a safe space. I call a tow truck to take the vehicle to the dealership for evaluation. I later spoke with the representative at the dealership and she told me that my 6.2L V8 engine had seized up. She could not tell me why it happened.

While driving My 2019 GMC Sierra I heard a loud Bang And lots of Misfires. The vehicle immediately slowed on its own causing me to pull off the road and endanger myself and traffic around me. Engine light came on and the traction control light was flashing. The Vehicle was brought to Dealer where they Diagnosed the problem all lifter rods were frozen and the cam shaft was cracked. The Dealer has the affected parts.The vehicle was in the repair shop for over two weeks and close to 7,000.00 in repairs.

I do not know if this qualifies as a safety concern, however based on everything I have read, I wanted to report the incident since you have 39 cases already. My 2019 GMC Sierra Denali w 6.2l engine, and 60,000 miles, starting tapping on April 10, 2025. I brought it to the local dealership the following day to diagnose. The dealer reported that they located metal in the oil pan/ filter and said the engine needed to be replaced. After more reading, it seems my truck is one of the vehicles with the 6.2l engine that is failing in countless numbers. In all fairness, I did not crash, the engine did not seize and it did not create a safety hazard in my incident, so i apologize if this reporting is a waste of your time. Now i have been given an invoice for over $10k to replace the engine which is on backorder nationwide I'm told due to the number of engine failures. Obviously it is out of 5 year 60K mile warranty so I have to eat the engine replacement.

The contact owns a 2019 GMC Sierra 1500. The contact stated while the vehicle was parked, the driver's side tail pipe flange bolts connecting the tail pipe and the muffler snapped, causing the tail pipe to hang down. There were no warning lights illuminated. The contact had gone underneath the vehicle and saw that the muffler was disconnected from the tail pipe and that the exhaust bolts had snapped. The dealer was contacted, and an appointment was scheduled to have the vehicle repaired; however, the vehicle was not yet repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 107,105.

Engine oil coolant lines leaking at crimped fittings. Known problem on 2019 GMC Sierra Pickups 1500, under customer satisfaction program N212326940, known to affect in areas of very cold temperature weather, North Dakota where we live is extremely cold -45 deg F in winter. Risk of total oil loss and engine failure. Dealer replaced lines with no reduction in price for a known failure. Warning leaking oil on my driveway, filled engine, scheduled appointment and dealership replaced lines at full cost. This program to replace the lines at no charge should apply to all 2019 GMC 1500s that develop the leaks.

The contact owns a 2019 GMC Sierra 1500. The contact stated that the vehicle was taken to the local dealer for a routine oil change. The dealer informed the contact that the oil level was low. The contact stated while driving at 25-30 MPH, the low oil pressure message was displayed. The contact pulled over and there was oil on the ground. There were no warning lights illuminated. The contact stated that the failure was related to NHTSA Action Number: PE25001 (Engine and Engine Cooling). The vehicle was towed to the local dealer again, where it was diagnosed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The approximate failure mileage was 127,000.

2024 the lifters when out in the engine and were replaced 2025 the engine malfunctioned while driving on the highway. There were messages that came up of low oil pressure and the engine completely locked up The dealership is saying the engine needs to be replaced

The contact owns a 2019 GMC Sierra 1500. The contact stated that while his wife was driving 60 MPH, the engine seized, nearly causing a crash. The driver was able to veer to the side of the road. The check engine warning light was illuminated. The vehicle failed to restart and was towed to the dealer, where it was diagnosed and determined that the engine had seized and needed to be replaced. The dealer informed the contact that the upper part of the engine was previously rebuilt, and that the current failure was related to the lower part of the engine. The dealer informed the contact that there was a cost for the repair. The manufacturer was notified of the failure and offered a discount towards the repair. The dealer later informed the contact that the manufacturer would partially cover the repair cost. The vehicle was not repaired. The contact related the failure to NHTSA Action Number: PE25001 (Engine, Engine and Engine Cooling). The failure mileage was approximately 100,000.

On 04-03-2025 while driving southbound in DFW International Airport. My Vehicle losses power in the Construction zone at 2:20 pm. Had enough momentum to maneuver to Terminal A exit stopping Midway up ramp. Danger to public if vehicle stopped on highway during the start of heavy traffic in construction zone with no soft shoulders for emergency's. No warnings from the cluster panel ever came up. on attempting to restart, check engine light illuminated after the fact. No Help! Vehicle is at Dealership currently awaiting further info.

This incident happened without any warning at all on [XXX]. while driving 45mph on county road, the engine seemed to not be firing on all cylinders. Loss of power was immediate. accompanied by a rhythmic nocking that was felt and heard. I pulled off and called a tow truck. The engine is a 5.3 liter v8. At Pete Moore Chevrolet they said it was a failure of the number 8 cylinder valve lifters. that all lifters need replaced along with the camshaft due to scarring. Found through research that this is a frequent problem with engines 2014-2021. See - [XXX] , et al, vs General Motors LLC. (brought by Berger Montague) filed in the US District court of Eastern Michigan. Alleging defective valve lifters causing near or catastrophic engine failure. NHTSA has 39 active cases as well. Contacted GM Customer Satisfaction Program 3/27/25. Case #[XXX]. Goal to see with their prior knowledge of this issue could they help repair or replace the engine. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was driving down the road, got a quick message. It said something about lean and to pull over (on dashboard). And by the next stop light the engine stopped. The truck no longer turned on. It did put my life in danger because it left me stranded in between two lanes. The truck was inspected by one of my mechanic friends who owns a shop. He let me know my engine is seized.

While I was driving the engine started to lose power on the highway going about 70 mph with my four kids in the car. I had to quickly exit the highway and pull over. I was uncomfortable continuing operating the vehicle and had to get it to the closest GMC dealership which was in Killeen Texas. (Patriot Buick GMC). Upon diagnosis, I was informed that the lifters were damaged and needed to be repaired. Once the technician started the disassembly he noticed that the lifters caused damage to the cam shaft resulting in additional repairs which totaled approximately $8700 in damages/repairs required. I started to research this as the lifters typically do not fail in vehicles that are 80,000 miles or less. While conducting research I noticed that this is a common problem in the GMC Sierra 1500 to the point there is a lawsuit against GMC right now. I am frustrated because I believe that there should be a recall as the safety of my kids and I were put in danger for a part that is commonly failing in this vehicle.

Engine keeps running out of oil I’ve taken it several times to the dealership sometimes there was no oil in it. Only has 80,000 miles problem started 2 years having it

ENGINE FAILURE. CAM BEARINGS FAILURE. ENGINE SEIZED UP. SAFETY ISSUE: TRAVELING ON HIGHWAY TOWING A FISHING BOAT. PULLED OFF FOR FUEL. ENGINE COMPLETELY SEIZED UP WHILE AT GAS PUMP. IF IT HAD IT SEIZED UP BEFORE PULLING OFF HIGHWAY FOR GAS, GREAT RISK FOR A CATASTROPHIC CRASH, ESPECIALLY WHEN PULLING A BOAT TRAILER. ALL SYSTEMS INCLUDING STEERING SHUT DOWN. JOHN JONES CHEVROLET DEALERSHIP IN SCOTTSBURG INDIANA RAN DIAGNOSTICS AND CONFIRMED COMPLETE ENGINE FAILURE. FAULTY CAM BEARINGS SEIZED UP. ENGINE IS RUINED AND MUST BE REPLACED. INSPECTION BY JOHN JONES CHEVROLET DEALERSHIP. WE HAD BEEN ON THE HIGHWAY FOR 3.5 HOURS WHEN PULLED OFF FOR GAS. THERE WERE NO WARNING SIGNS. NO CHECK ENGINE LIGHTS, NO LIGHTS AT ALL ON THE DASH. NO UNUSUAL SOUNDS OR SMOKE. NOTHING UNUSUAL BEFORE THE ENGINE SEIZED UP.

The truck had been parked for about 4 hours, after a 250 mile trip. I cranked it and started driving to return home. I heard an intermittent squealing noise while driving. I had driven only about 2 miles when the engine suddenly shut down in heavy traffic on a four lane divided highway. I managed to get the truck into the median and stop. I was left stranded in the middle of the highway. It turns out the the engine bearing went bad and ruined the engine. I will now have to replace the engine at a cost of about $15,000.00. This is a safety concern when the engine suddenly failed and stalled while driving on a four lane divided highway, in heavy traffic.

The passenger side lifters in my truck failed while at idle/5mph speed causing catastrophic engine failure. 2019 6.2L V8 from GM. From my own independent research, and the research/survey of others online, this appears to be a very common problem as a result of known defective parts that were installed on GM engines.

I was driving down [XXX] near Harrisburg PA in an active construction zone when the truck shut off, the dash blinked a few things very rapidly then went black. I was barely able to coast to an area large enough to get my truck out of the highway traffic. I was stranded on the side of the highway for 4 hrs and due to the construction hardly able to get out of the truck safely as it was around a bend. I’ve had to have the truck towed to a few mechanics to learn that it has suffered a catastrophic engine failure as all cylinders have lost compression. It made no noise at all. There was no signs this was going to happen, just driving normally then a complete engine failure resulting in no compression in all 8 cylinders with no noise. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

It blew a hole through the engine block. The engine is a 6.2 L 87

Driving on the highway, while accelerating, heard a mechanical failure from the front end of the vehicle and had immediate loss of power, and reduction in performance/handling. The engine light came on and three warning messages; Service ESC, Service Parking Brake & Steering Assist is Reduced Drive with Care. Fortunately, the local GMC dealer was the next exit which is where the truck is currently located. The truck was inspected by the dealer and determined the engine should be replaced. It is available for inspection upon request. I have pictures of the warning messages and the work order from the dealer of their findings to date.

This morning, while driving to work, my truck was operating smoothly without any prior warning signs. Suddenly, the dashboard displayed a message indicating "Low Oil Pressure" and instructed me to turn off the vehicle. There were no preceding alerts, such as check engine lights or low oil pressure indicators. As I was preparing to follow the instructions, the vehicle dashboard displayed another message directing me to put the truck in neutral, and then the engine automatically shut off. Unfortunately, after this occurred, I was unable to restart the truck.

I was driving to work on Saturday morning [XXX]. As I pulled out of the stop sign and approached 45 mph the engine stop. Making me a hazard within the road. I had to abruptly pull off into a road/yard in order to be safe. All while not having a power as the engine completely stopped. Upon investigation the dealership, Budd Baer in Washington Pennsylvania confirmed the engine had seized up due an issue in rotating assembly. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Engine failure. Lifters failed causing internal engine damage. No previous warning. 160000 miles. Repair cost is $5000

cylinder #1 had misfire and this was because the liftt malfunctioned which inturn caused it to grind on camshaft

Lifters are failing which could cause motor shutdown during driving.11/26/2024

Engine threw a rod and needed to be replaced out of pocket due to vehicle being out of warranty. Going down I35 so not safe at all. All dash light illuminated when it occurred.

On Jan 7, 2024, we went to Walmart to shop (DeRidder, LA). The truck was running normal. All gauges were normal and the reason I can say this is because our truck broke down in 2023, so we have a habit of checking them when we start the truck before driving and during driving periodically. When leaving Walmart we were at the red light and the truck just stopped. A message came on and said to shift into Neutral, which we did. The truck then died and would not stop. Pushed it into the parking lot and had it towed to Billy Navarre Chevrolet, Lake Charles, LA. After they looked at the truck on Jan 9, they said the engine was seized and we needed a new one. They couldn't say why. They said that would be figured out when the old motor was shipped back. After putting in the new motor, the POC at the dealership called and said we needed a new water pump that the one he took off was bad. They insinuated that was the cause of the engine seizing. However this wasn't determined until they went to put the old one on. If the water pump failed, we believe it should have started showing engine overheat and there was no such thing.

Engine seized it won’t crank we swapped the alternator 2 times the battery once the and the starter once we also swapped the battery chip 3 times and it would turn off out of no where. We thought it was because of the miles but it was working fine. And took care of it nicely. We took it to a dealership and they told us that it needed a new motor because it was seized. But before that it would start up and turn off after 15 minutes. We took it somewhere else in a tow truck and they told us that the engine was seized.

while driving down the road i noticed the truck had a lack of power and then the check engine light came on and as soon as it came on i heard a ticking/clacking noise. I got the truck towed to a repair facility and they found misfire on cylinder 8, they informed me and wanted to drain the oil and also removed the valve cover in order to check the valve train. They found a lot of metal in the oil along with a decent amount of decent shavings in the oil filter. They removed the valve cover and found a bent pushrod and stuck lifter. They did mention a possible noise coming from the bottom end of the engine (knocking) but at this time with the amount of contaminates in the oil and stuck lifter, The engine is recommended to be replaced. No ETA at this time for a replacement

Engine failure- sent in old engine as a core piston broke off the rod causing the engine to seize replacing with reman engine from GM

Driving home on a rural two-lane road the engine started make a load banging noise on the drivers side, than it started to skip and not running on eight cylinders. it than lost oil pressure.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving approximately 25 MPH, there was a ticking sound coming from the engine compartment. The contact pulled over to the side of the road where the engine seized. There were no warning lights illuminated. The vehicle was towed to the dealer who diagnosed that the engine had seized and needed to be repaired. The engine was rebuilt. The manufacturer was made aware of the failure. The failure mileage was 114,660.

I was driving down the highway with my teen daughter heading to a hockey tournament in Michigan. We live in Illinois. While in Michigan on the highway driving around 80 mph, I went to pass a vehicle and several service warning lights starting flashing on the dashboard. The ones that flashed were: Service ESC, Service Parking Break, Steering Assist is Reduced Drive with Care. At the time, the engine started making rattling noises and sounded rough. I could feel there was a problem right away. I carefully pulled over and turned the truck off. I waited a few minutes and then turned the truck back on. The service warning lights were still on and the engine was still running and sounding rough. I tried turning it off and on again but the same problem persisted. I then drove the truck about one mile to the next exit just to get off the highway. I was doing about 45mph during this time. I then pulled into a parking lot and contacted On Star to diagnosis the vehicle. They diagnosed a P300 code and said it was an engine misfire. I then found a local repair show and drove another 2 miles to get there. They looked at it for an hour and said they could not help me. They were also getting the cylinder misfire code. I had the vehicle towed to a dealership that same day. I had to rent a car to return back to Illinois with my daughter. After a week and a half, the dealer started looking into the issue. They diagnosed a lifter failure and said a new engine was needed. We purchased the new engine for $10,490 and the dealer installed it. Three weeks later, the vehicle was ready and we had to drive to Michigan to pick it up. I’ve reached out to GM and they just apologized and offered us 15,000 points in our GM account. We declined. We asked for financial assistance and they also declined and said it was out of warranty and it’s our responsibility to pay for all costs.

The truck engine experienced catastrophic failure while driving at 30 MPH. There was no warning or dashboard indication problem prior to the failure. Loud ticking noises were coming from the engine compartment just before full power loss while driving. The vehicle was towed to an independent mechanic. The mechanics found bent valves, damaged pistons and connecting rods. The mechanic replaced the the engine with a GM Longblock. The cost of this repair was just over $10,000.

Engine has a bearing failure. Just purchased the truck it started to tick so I was being proactive stopped driving the the truck to prevent lock up.

Engine failure with no prior warning 11/21/2023. We were on the highway. Truck made some noises and hesitated and stalled within 2 minutes. Thankfully, there was an off ramp and we were able to roll into a gas station. Had it towed to a GMC dealer. GMC dealer confirmed engine was blown. Dealer confirmed it's a known issue.

While driving the vehicle, had a sudden “thud” from the engine compartment and immediately started getting error messages on the dashboard. When the codes were pulled, it said a misfire from cylinder number 8. The initial shop it was taken to was unable to diagnose the problem and referred me to the dealership. Upon inspection at the dealership, they stated that the camshaft and all the lifters needed to be replaced. The vehicle is still at the dealership waiting for this to be done. Upon doing some research, I have found that lifter issues are a very common occurrence in these vehicles. I was reading this morning about the investigation that the NHTSA has started into issues with the L87 engine, which my vehicle has. If the investigation is concentrated on another issue, I would recommend that the lifter issue gets looked into as well. There is no reason that a vehicle with just over 100,000 miles and has had all the oil changes done on time, should suffer a failure like this that costs thousands so dollars to fix. I apologize for not including videos of the issue, I can’t save the ones that the dealership took. Please feel free to contact me if you need any further information or if I can be of further assistance. Thank you.

My 2019 GMC Sierra AT4 - Driving home from work on the highway car lost sudden power, All engine notifications appeared on dash and a very loud screeching sound happened. Was able to pull it onto the side of the road barely. Diagnosis from nearby shop was a lifter failure in cylinder 5 causing metal shavings to lock crank up. Total engine replacement. Car has 122,000 miles and every oil change done at 3,000 miles by GMC service technician since new and documented. GMC offered nothing when notified about the issue.

So August 29, 2023, at 46,000 miles, my engine failed completely with no warning or anything, while driving to work, was at the dealership until October 4th. Then December 10th, 2024 with 83,000 miles my engine failed again while my little brother and I were driving home late that night, on the highway at 70mph , suddenly losing power, causing us to be stranded on the side of the highway at 2am. Has been at the dealership since December 11th, with no eta in sight, and we're at 36 days and counting. A spac case was opened to escalate getting a part. This truck has been a problem and I want to get rid of it as its a safety hazard to myself, family members, and other on the road. GM customer service has also been giving me a runaround as well.

I was driving and my vehicle started to give me warnings to pull over due to low oil. When I safely pulled over and check. the engine oil cooling line was detached from crimp joint and leaked all the oil. Called the tow truck and took the truck to the dealer (Charles hardy chevrolet in Dallas GA) And they telling me that the engine is locked and it need to be replaced. There is a recall for the part but they telling me that my vin number is not part of it. Even though is exactly what the recall said it would happen

I have a 2019 gmc sierra 1500 elevation. The dash indicated low oil with 60lbs of oil pressure. I stop park my vehicle and see there is a puddle of oil underneath my truck. It appears to be leaking (extremely high flow rate) from the oil cooler lines where the rubber has given way from the metal crimping. Apparently after calling the dealership and reading online there isn't any type of recal for this issue even tho there is a Customer Satisfaction Program N212326940 implemented for Alaska and Canada due to the cold weather climate causing the failure. I live in western Pennsylvania and currently had a cold snap of 11°F. The dealership wants me to pay out of pocket and take my vehicle in to get diagnosed for service , which also means paying to have it towed to the dealership since it is un-drivable . Then pay for the very obvious service and file to see if I can be potentially reimbursed. This vehicle has less than 70,000 miles on it and is outside of the warranty. However this is a reported common issue online and even through the service department in Zelienople Pennsylvania because the tech. Told me they have the parts in stock because they do alot of them when I was inquiring into the issue.

While driving the transmission lurches forward when I give it gas after slowing down or when I come to a complete stop. Also it makes a shuddering type noise randomly when driving and it feels like the truck is about to shut off. These issues happen on multiple occasions.

Oil line separates causing massive oil leak causing engine to fail

2019 GMC SIERRA 1500, Fuel Injectors. This was a recall back in April of 2021. My vin is not on the recall list but am having the same problems. While driving the check engine light came on alone with no power check abs system and parking brake.

The engine of the vehicle malfunctioned. The vehicle is available, but however it was taken to a certified dealership to be repaired. My safety and the safety of my three nieces, who were in the vehicle at the time, were put at risk as the vehicle all of a sudden staled in the middle of the Interstate while driving at 75 miles speed rate. The dealership repaired the vehicle by replacing the engine because the camshaft was scored, one of the lifters had failed, and a pushrod was bent. The only warning lamp/message was at the time of stale which read service ESC, Service parking break, and there was a third message but could not remember. I have only had the vehicle for sixteen months. The vehicle was taken in for it regularly scheduled oil changes and tire rotations. There were no issues or warnings prior to the engine replacement which cost me $8623.00.

Lifter cam failure. Twice

Engine oil cooler line crimp connections are not properly crimped and leaking oil whether the truck is operating or sitting off. It also appears the flare or threaded connection has failed. I went to the GM dealership who said my truck wasn’t part of the recall but my lines are very clearly the same affected parts and would not be available for repair under the recall. I suspect there are other trucks like mine that were missed in the initial recall. I had the lines inspected at another repair shop but all the GM oil cooler lines were unavailable and no back order was permitted. There have been no warning lights for low oil pressure yet but the worst level I have seen so far was only 3 of 8 in quarts in the oil pan. I’m afraid of the lines blowing out on the road and causing a total uncontrollable engine failure and oil slick for other drivers.

With only 89K miles on my vehicle I’m having to replace 13K dollars worth of parts due to a known issue with the 5.3L V8 engine with the AFM DOD system that GM hasn’t fixed and refuses to help cover the cost cause I’m outside my warranty. I feel they need to extend the warranty miles and time frame due to the common occurrence of this issue

Engine Oil Cooler Line detached from Crip fitting. Vehicle: 2019 Sierra 1500 powered with 6.2L L87. GM has a published policy for a specific 530 vehicles, GM Claims my VIN was not covered hence no recall police "Customer Satisfaction Program N212326940" letter was released for subject VIN. It's clear, this issue exists beyond the scope of 530 vehicles. No know warnings existed prior to the incident. Vehicle has been repaired at owners expense and not supported by GM.

The lifter valves for the dynamic fuel management system have failed twice resulting in an immediate loss of power, rough driving, and low speed. To replace the first time, it cost $3500 at a mechanic. The 2nd time that it happened (8 months later), we now have to have the engine replaced and it cost almost $10,000. GM has refused to take any ownership in these faulty lift valves and someone is going to lose control of their vehicle when this occurs.

The contact owns a 2019 GMC Sierra 1500. The contact stated while driving 25 mph, the oil pressure low/turn vehicle off warning light was illuminated. The contact was able to park the vehicle at a near parking lot. The contact exited the vehicle and hear an abnormal noise exiting under the vehicle and saw an oil leak. The contact stated her father-in-law came to the location to add oil but the vehicle keep leaking. The vehicle was not drivable. The contact towed the vehicle to the local dealer, where it was diagnosed with the engine cooler line needed to be replaced. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 84,000.

According to inspection by my local GMC dealership, the engine oil cooler lines leaked/detached, as a result the engine assembly needs to be completely redone. When driving on the highway the car began flashing to immediately pull over and turn the vehicle off, the engine became very hot and was smoking and oil was found all over the ground upon inspection after immediately stopping the vehicle. This vehicle has been inspected by the Carlsbad GMC/Buick Dealership. There were no warning messages prior to this event. The car has consistently received all recommended preventative maintenance and oil changes. As a consumer I am now on the hook for over $15,000 in repairs, after complying with all maintenance recommendations from the manufacturer. There is an active recall for an identical model and make as this car for the same issue, the recall number is: N212326940 (customer satisfaction program number) and DCS5833 (Global safety field investigations number). I am very confused as to why this recall has not been applied to my vehicle.

The contact owns a 2019 GMC Sierra 1500. The contact stated while driving 10 MPH, the low oil pressure warning light illuminated. The contact stated that he parked the vehicle and became aware that oil was leaking underneath the vehicle. The vehicle was not drivable. The contact towed the vehicle to the local dealer, where it was diagnosed with needing the engine oil cooler line to be replaced. The vehicle was not repaired. Upon investigation, the contact associated the failure with Customer Satisfaction Program Number: N212326940 (Engine Oil Cooler Lines Detaching from Crimp); however, the VIN was not included. The manufacturer had been informed of the failure. The failure mileage was approximately 82,000.

Engine had catastrophic failure while driving down highway with no warning. No check engine light. Loud bang and loud metal on metal slapping with violent shaking of front end of truck. Towed to dealer. So far they say lifter failed, and push rod collapsed and drove through engine block. 40000miles, 2019 Sierra 1500 Denali with 6.2l V8.

I have faulty lifters and it has been inspected by a GM dealer. I believe this issue should have a service bullentin to have it fixed. They have others for faulty valve lifters in the same model truck that I have.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while parked, the vehicle began to make an abnormal sound and shuddered. The contact turned the vehicle off and the vehicle failed to restart. The vehicle was towed to the dealer; however, the vehicle was not yet diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 30,000.

Engine began having ticking noise. I took it to dealer for repair. Service department finds the lifters in my engine have failed and destroyed my cam shaft. They call me and explain it will cost $10,000 to repair. The service writer explains to me that they have 4 of these each week come into the shop. It is so common that they keep the parts in stock to repair. While I was waiting in the waiting room another person came in with the exact same problem. I later found that a repair bulletin has been issues for this issue but for some reason it does not apply to my vin even though it is the exact same problem.

While driving on the highway, I got a message that said "low oil pressure, turn off engine" with red flashing lights. I could also smell burning oil and metal. I immediately pulled over and turned off my engine. When I exited my truck, I could see all of the oil that remained in my engine leaking onto the ground. My truck was towed to a local repair shop and they advised me that this is a common problem in this truck. The oil line blew likely due to a defective crimp. The mechanics can't repair the problem right away because this line is on a national backorder and there is no aftermarket option. This obviously happens too often if this part is on backorder. The mechanics believe there may have been damage done to the engine as a result of losing all of the oil on the highway.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while performing an oil change, the engine coolant line was leaking oil. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The contact related the failure to Customer Satisfaction Number: N212326940 (Engine Oil Cooler Lines Detaching from Crimp) however, the VIN was not included. The failure mileage was approximately 38,200.

The lifters were replaced leas that 2years under warranty at Pooler Chevrolet. They have stated this is a common problem with this vehicle and they had a lot of these vehicles come in with the same exact problem. Vehicle had no power, engine lights on and valve failure after being replaced before and the vehicle has less than 60,000 miles at 2nd failure. They stated the 1st repair has no warranty to cover such a catastrophic failure and I must pay out of pocket. I argued that it shouldn't have failed with less than. 60,000 miles any expectations of engine failure would be with massive miles and would be expected for some form.of major over haul. Caused emergency as i was in the middle of the interstate upon failure and I almost lost my life. I asked who was performing the repair and they won't answer the request about the repair. They stated it was sent out for repairs and not an in house repair. All repairs have been at GM certified center.

I was on the highway going 60mph and the engine light came on and it said “low oil pressure, turn off engine”. I could not safely pull over and had to drive a half mile to do so. The vehicle was towed to the service station near my house that I’ve used before and the problem was a blown high pressure oil line. Technician said that the hose came undone at the crimp joint and that he’s recently seen other Sierras with the same problem. I checked my GMC app and there were no recalls so I authorized the repair and paid the $919 bill. A few days later I did a google search for 2019 GMC Sierra oil line problems and got several hits from the GMauthority.com site. It’s a known problem in Canada and Alaska (cold weather) and GMC will repair it at no charge if the vehicle was bought there and the repair is done by a GMC repair facility but they won’t reimburse me because I bought mine in MA. It was 24 degrees the day the line blew. The problem is that the part is faulty and fails at cold temperatures. There should be a recall on the high pressure oil lines for all vehicles sold in cold weather states.

Lifters failed. Damaged crank. Just out of factory warranty.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the engine oil cooler line detached causing oil to leak onto the ground. The vehicle was towed to the dealer where it was diagnosed that the engine oil cooler line needed to be replaced. The vehicle was not repaired and remained at the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 33,000.

My 2019 GMC Sierra was traveling on the highway at 70MPH. The oil cooler line detached, and the truck shut down telling me to get over now. There was oil everywhere. I am shocked it did not catch fire. there was also 7 quarts of oil on the highway I called the dealer, and they are well aware of this problem. They were sorry but there is nothing we can do for you. They told me they do 1-2 oil cooler lines a month. [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Every time I start the engine I get loud ticking noises. This is Lifter noise! I took it into the Dealership and they said the noise was normal. GM is known for having this Lifter problem in the heads. This can destroy my engine, causing premature wear on the lifters themselves.

Purchesed a 2019 GMC AT4 6.2 w/16300 miles on it on April 19, 2021. Yesterday w/18700 miles are began to exprience a loud ticking sound coming from my engine. The ticking is associated with a failed lifter or lifters. Had to get my truck towed to the dealership for repair.

TL* THE CONTACT OWNS A 2019 GMC SIERRA 1500. THE CONTACT STATED THAT THE CHECK ENGINE WARNING LIGHT WAS ILLUMINATED AT START-UP. THE VEHICLE WAS TAKEN TO PENSKE BUICK GMC OF CERRITOS LOCATED AT 18400 STUDEBAKER RD, CERRITOS, CA 90703, (562) 733-3800, WHERE IT WAS DIAGNOSED WITH NEEDING THE FUEL SENSOR TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED AS OF YET. THE MANUFACTURER HAD BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS 5,000.

TL* THE CONTACT OWNS A 2019 GMC SIERRA 1500. WHILE DRIVING 25-30 MPH, THE ENGINE SEIZED WITHOUT WARNING. THE VEHICLE WAS TOWED TO CUMMINS CHEVROLET BUICK GMC CADILLAC (300 N AIRPORT RD, WEATHERFORD, OK 73096, (580) 247-2263) WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION MODULE NEEDED TO BE REPLACED; HOWEVER, THE PARTS WERE BACKORDERED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 2,100. THE VIN WAS NOT AVAILABLE. *BF CONSUMER STATED TAKING FROM STOP @ 25-30MPH, VEHICLE CAME TO A COMPLETE STOP. ALSO IN REVERSE, NO TRAFFIC AND WASN'T GOING 55 MPH. *JB

ON APRIL 21ST A PRESSURIZED LINE LEADING FROM THE ENGINE TO THE ENGINE COOLER FAILED AND THE ENGINE SUFFERED RAPID OIL LOSS LEADING TO ENGINE FAILURE. THIS APPEARS TO BE A FREQUENT ISSUE WITH 2019 SIERRAS AND SILVERADOS (THE NEW BODY STYLE): HTTPS://WWW.GM-TRUCKS.COM/FORUMS/TOPIC/222403-2019-SILVERADO-TRAILBOSS-53L-ENGINE-OIL-COOLER-LINE-FAILURE/ THE TRUCK WAS MOVING AT APPROXIMATELY 35MPH ON A STRAIGHT SURFACE STREET AT THE TIME OF FAILURE. MILEAGE WAS ONLY 5,500 MILES. OTHER IMPACTED OWNERS SEEM TO BELIEVE IT IS A FAILURE OF A POORLY DESIGNED CRIMP CONNECTOR. IT'S BEEN 15 DAYS SINCE THE INCIDENT AND MY VEHICLE ISN'T REPAIRED YET. OTHER OWNERS REPORT WAITING CLOSE TO 30 DAYS FOR GM TO DECIDE HOW TO PROCEED.

WHILE DRIVING DOWN ROAD, SUDDEN MESSAGE OF "NO OIL PRESSURE, TURN OFF ENGINE IMMEDIATELY". WAS ABLE TO PULL OVER WITH NO POWER (LUCKILY IT WAS SAFE TO DO SO AT THE TIME). LEFT A LARGE PUDDLE OF OIL UNDERNEATH THE FRONT OF THE VEHICLE. ALSO, LEFT LARGE CLOUD OF SMOKE FROM OIL SPLASHING ON HOT COMPONENTS UNDERNEATH VEHICLE (EXHAUST, ETC...) BEHIND ME. VEHICLE WAS UNDRIVEABLE AND HAD TO BE TOWED. LARGE OIL LEAK WAS THE RESULT OF A BURST OIL COOLER LINE. DEALER DID NOT SHOW ME THE FAILED PART. UNABLE TO CONFIRM NATURE OF "BURST".