2020 Kia Forte Engine Problems

The lane assist malfunction and periodically jerks. Very unsafe I no longer use this feature . To keep control of the vehicle. I never got it inspected. As the lane assist was in use and it would jerk it would alert me of a lane departure . I mention this to include every known problem I have experienced with the vehicle. The problem That brought me here. Is my engine light came on today. Leading up to this. I have had oil leaks since I've owned the car. Im adding oil in between oil changes due to it being low. In the beginning it was a hint of smell of gas in the oil. I was informed to do more frequent oil changes. Over time the smell of gas grew stronger . No Indication to a problem then. Now the smell of gas is prominent in the oil. When the dip stick is checked its always needing more oil and smells of gas and has blackness like burning in the oil. Now there's a check engine light on. And everything I looked up says to discontinue driving the car. I am having a mechanic look at it with a code reader.

I own a 2020 Kia Forte LXS with approximately 136,000 miles. The check engine light came on with code P0420 (“catalyst system efficiency below threshold”), and an Express Oil Change & Tire Engineers location confirmed the catalytic converter is failing. The back pressure was measured and is within spec but slightly elevated, showing the part is deteriorating. I was also told my O2 sensors are burned due to the failing catalytic converter. This failure affects drivability and safety: the vehicle sometimes struggles on acceleration and hills, and I feel vibrations through the gas pedal. Because I commute 50 miles each way to work on the interstate, sudden loss of power would put me at risk in high-speed traffic. I have learned Kia and Hyundai vehicles from other years/models (including the Forte) have had recalls and extended warranties for premature catalytic converter failure and excessive oil consumption, but Kia has not yet extended coverage to the 2020 Forte. This appears to be the same issue. The vehicle has been inspected by Express Oil Change & Tire Engineers, and the quoted cost for replacement is $3,000–$3,600. This should be investigated for potential recall or warranty extension to include the 2020 model year.

The engine light went on and engine is burning oil mechanic said it needs to be rebuilt it’s currently under financing from kia and not sure if they cover this

The contact owns a 2020 Kia Forte. The contact stated that while driving at an undisclosed speed, the vehicle stalled. The contact stated that the check engine warning light was illuminated. The vehicle was taken to a dealer where it was diagnosed and determined that the catalytic converter needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 117,892.

My vehicle lost 3 quarts of oil between oil changes somehow. The engine is bad now and has to be replaced. Never did a check engine light or oil pressure light come on to alert me that my car was burning oil somehow and the oil was low. At the oil change a few weeks ago the techs underneath my car called out that everything was normal under the car. No leaks, no oil spots anywhere. My safety was put at risk because I drive a very busy highway to work every day. If I had been in heavy traffic at the time of engine failure I could have gotten into a wreck or caused a wreck. If a check engine light or low oil pressure light had come on, this whole situation could have been completely prevented. The issue has been confirmed by the dealership on 5/7/25.

The contact owns a 2020 Kia Forte. The contact stated while driving 65 MPH, there was white smoke coming from the engine compartment. In addition, the contact stated the vehicle began to lose motive power and the oil warning light illuminated. The vehicle was able to restart but the contact stated the accelerator pedal would not function properly after the vehicle was parked. The vehicle was towed to the dealer for diagnosis. The contact was informed that the drain plug was missing and had caused the oil to leak out from the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 75,709.

The contact owns a 2020 Kia Forte. The contact stated while driving approximately 55 MPH, the check engine warning light, and a message that Kia had been alerted of a failure was displayed on the instrument panel. The contact stated that the vehicle lost motive power and stalled. The contact was able to start the vehicle and drove back to the residence. The contact stated that while attempting to restart the vehicle, the vehicle was making an abnormal knocking sound before stalling. The contact called an independent mechanic who diagnosed the vehicle on site and determined that the intake and exhaust cam shaft position sensors had failed and that metal shavings were found obstructing the cam shaft sensors. Additionally, the vehicle was very low on engine oil. The vehicle had received an oil change approximately 3-months prior to the failure. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 80,000.

While driving I heard a pop then the lights on my dash lit up my car came to a stop i.e cut off tried to start back up the engine caught fire burned the whole front end off total loss