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2021 Kia Forte Engine Problems

13 owner-reported engine complaints from NHTSA data

13
Complaints
Jan 2024Nov 2025
Date Range

Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.

Owner Complaints (13)

criticalENGINE
Filed: Mar 2026

Your car's engine is burning through oil quickly, which has caused the engine to shut down suddenly without warning and resulted in engine damage. This is a serious issue that needs immediate attention from a mechanic who can diagnose why the oil is being consumed rapidly and assess the extent of engine damage.

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NHTSA #: 11723359
criticalENGINE
Filed: Jan 2026

While driving in slow traffic that suddenly started moving, your engine overheating warning light came on. You pulled into a parking lot and the car shut off on its own. The dealership has diagnosed a blown engine, which is currently being repaired.

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NHTSA #: 11712680
criticalENGINE
Filed: Nov 2025

Your engine stalled without warning in traffic shortly after an oil change, creating a dangerous situation. The dealership identified an engine malfunction, but it wasn't covered under warranty since your car had just exceeded 70,000 miles. You're concerned this may be part of a larger defect affecting other Kia owners.

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NHTSA #: 11696940
criticalENGINE
Filed: Aug 2025

Your car experienced a sudden loud noise while driving and lost power, making it unsafe to operate. A mechanic found that your engine had no oil in it, which matches a known defect in Kia's Theta II GDI engines that can cause engine seizure and fire. Although your vehicle has the same problem as recalled cars, Kia refused to cover a repair because your VIN isn't on the recall list.

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NHTSA #: 11680039
criticalENGINE
Filed: Jul 2025

Your 2021 Kia Forte GT has experienced complete engine failure after months of excessive oil consumption—the engine was burning about a quart of oil per week or faster. You noticed a hard knocking or rattling sound before the engine gave way while you were driving, which created a safety risk for you and other drivers on the road. Kia has received previous complaints and lawsuits about this same issue on your model year. The repair will likely require a full engine replacement or major engine overhaul.

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NHTSA #: 11672183
criticalENGINE
Filed: Jun 2025

While driving at 65 MPH, you heard an abnormal rattling sound from under the hood, and your car suddenly lost power with no warning light appearing. The dealer found that the cylinders and pistons had failed, requiring engine repair or replacement. This happened at 93,532 miles.

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NHTSA #: 11666013
criticalENGINE
Filed: Mar 2025

Shortly after getting a routine oil change, your 2021 Kia Forte lost power, wouldn't accelerate, and eventually shut down. The engine now makes a terrible clicking noise and multiple mechanics believe the engine is blown. Kia is refusing to take responsibility because your car isn't currently on a recall, even though the company has issued multiple engine-related recalls on Forte models. Fixing this will likely require a complete engine replacement, which costs over $10,000.

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NHTSA #: 11647666
highENGINE
Filed: Mar 2026

Your check engine light keeps coming on while driving, and your car vibrates noticeably—especially when slowing down or at traffic lights. The vibration and warning light return even after restarting the vehicle, and lately your car has lost power and stalled a few times, with the idle RPM bouncing up and down as if you're pressing the gas pedal. Your dealer has checked it multiple times but couldn't find the problem and said everything is working fine, though nothing has been repaired. A complete engine diagnostic and ignition coil inspection will likely be needed to identify the source of the misfiring and power loss.

NHTSA #: 11721642
mediumENGINE
Filed: Jun 2024

I get regularly scheduled oil changes but the car is making a noise like a rod knock

NHTSA #: 11597359
mediumENGINE
Filed: Jan 2024

While driving on the interstate, multiple dash lights came on, the engine started knocking and shutting down. The vehicle was towed to the dealership and was found that the oil plug had fallen out, causing the oil to drain out and ruin the motor.

NHTSA #: 11564996
mediumENGINE
Filed: Jan 2023

Engine is very noisy for quite some time before getting quiet. 40000 miles. Lifters making a lot of noise. Possibly a failing oil pump.

NHTSA #: 11504550
mediumENGINE
Filed: Jun 2022

While driving down the highway, the entire crank pulley system fell out from under the car and onto the highway.

NHTSA #: 11471150
mediumENGINE,UNKNOWN OR OTHER
Filed: May 2022

Ticking sound under hood at 35000 miles

NHTSA #: 11466532

Other 2021 Kia Forte Issues