2017 Toyota Tundra Fuel System Problems

Your 2017 Toyota Tundra is having trouble starting and requires multiple attempts to turn on. A Toyota dealership diagnosed the problem as a faulty fuel pump made by Denso and identified that your engine's computer software also needs updating. Your truck could lose power while driving due to this fuel pump issue, and there are currently no warning lights alerting you to the problem. The repair will require replacing the fuel pump and updating your vehicle's engine control module software, though the dealership says the pump is on back order and may take months to arrive.

Your truck is having trouble starting, requires extended cranking before the engine turns over, and runs roughly once it starts. You discovered that 2018-2019 flex fuel Tundras have a recall for this exact issue, but your 2017 flex fuel model isn't covered by it. You paid over $2,000 to replace the fuel pump and reprogram the engine control module to fix the problem. A repair typically involves fuel pump replacement and reprogramming the vehicle's computer system.

Your truck is having trouble starting in cold weather. The dealer found that the fuel pump is defective and not delivering fuel properly to the engine when it's cold. Getting the fuel pump replaced should resolve the starting issue.

Your 2017 Tundra has been starting roughly for the past couple of weeks, and on January 16, 2025, it wouldn't start at all — no fuel was reaching the engine. You discovered that a recall was issued for 1.5 million 2017 Tundras for this issue, but your VIN doesn't show up in the recall system, and you believe your truck should be covered. The truck won't start, so you can't drive it to the dealership for repair. This likely requires Toyota to investigate whether your vehicle qualifies for the existing recall or needs a fuel pump and related fuel system diagnostics.

Your truck may have trouble starting and could stall while driving due to a fuel pump failure and computer issues. Even after the dealer replaced the fuel pump and reprogrammed the computer, the problem came back—your truck stalled while you were driving and the check engine light turned on. The computer was incorrectly detecting ethanol fuel when you had actually used regular gasoline, causing the system to malfunction. Fixing this will likely require the fuel pump to be replaced again and the engine control computer to be diagnosed and reprogrammed.

Your 2017 Tundra's fuel pump isn't delivering enough fuel pressure, and a dealer has recommended replacement. You've learned that the 2018 Tundra and other Toyota vehicles have been recalled for this same issue, but your 2017 model year hasn't reached the complaint threshold for a recall yet. The repair will involve replacing the fuel pump assembly to restore proper fuel system pressure.

Your truck has trouble starting when the engine is cold, specifically with the flex fuel system. You've taken it to the dealer multiple times, but the problem keeps coming back. This appears to be a recurring issue affecting other flex fuel Tundras as well.

Fuel Pump failed. Vehicle is currently at dealership awaiting 2+ week repair. Currently available to inspect. Failure began while driving. Caused misfire in cylinder 1, caused electrical fault that disabled traction control. Potential to leave the vehicle inoperable on the roadside poses a safety risk. Toyota dealership in possession states "START WITH FUEL PUMP, REPORGRAM ECM PER TSB AND RELEARN FUEL DENSITY FOR ALCOHOL CONTENT FLEX FUEL VEHICLE, OUT OF WARRANTY FOR TSB" Toyota dealership is the only entity to perform any inspection. There were no warning lamps or messages related to the fuel system. Check engine light and message stating "Traction Control Off" appeared while driving the vehicle. After limping the vehicle home, the vehicle would not start.

I believe my Tundra has an emissions problem that Toyota will not cover. The FUEL TANK ROLL OVER VALVE is stuck. I believe this is a hazards condition. Toyota say the fuel tank will have to be replaced and not under warranty. Truck was purchased new by me and has 38887 miles.

I purchased a CPO 2017 Tundra SR5 Double Cab. Within a month of ownership, the EVAP system failed due to a faulty charcoal canister. Truck didn't even have 60,000 miles on it. This was covered under warranty, but the local Toyota Dealer, tried to make me pay for it anyway.

MY TRUCK WON'T START AND THE SYMPTOMS DIRECTLY MATCH THE RECALL ALREADY IN PLACE FOR THE FOLLOWING YEAR. VEHICLE EVENTUALLY STARTED BUT SPEWED OUT ALLOT OF UNBURNED FUEL OUT OF EXHAUST PIPE.

FUEL TANK IS SUPPOSE TO BE 37 GALLON. I HAVE NEVER PUT MORE THAN 28.5 GALLONS IN THE TANK. EVEN WHEN I RUN THE TANK TO THE RED LIGHT OR MY MILEAGE INDICATOR SHOW 20 OR LESS MILES REMAINING. I HAVE ASK THE DEALERSHIP TWICE ABOUT THIS AND THEY CLAIM IS A SAFETY FEATURE SO YOU DON'T RUN OUT OF FUEL. I RUN THE TANK DOWN TO 10 MILES LEFT IN TANK AND THAT IS WHEN I PUT 28.5 GALLONS INTO IT.

TL* THE CONTACT OWNS A 2017 TOYOTA TUNDRA. AFTER THE CONTACT PARKED THE VEHICLE, THE ODOR OF FUEL WAS PRESENT. THE FOLLOWING DAY, THE CONTACT DISCOVERED FUEL LEAKING FROM THE VEHICLE. THE VEHICLE WAS TAKEN TO WALKER TOYOTA (8457 SPRINGBORO PIKE, MIAMISBURG, OH) WHERE IT WAS DIAGNOSED THAT THE FUEL HOSE HAD BEEN DAMAGED BY RODENTS. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 24,000.