2020 Chevrolet Malibu fuel system problems

Filed Feb 5, 2026 · Engine, Fuel system · 112,000 miles · CA

The contact owns a 2020 Chevrolet Malibu. The contact stated that while driving approximately 35 MPH, the vehicle started losing motive power. The contact stated that the vehicle stalled, with the check engine warning light illuminated. The vehicle was towed to an independent mechanic, who diagnosed the vehicle and determined that the fuel injectors had failed and needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The contact stated that the vehicle was hesitating and losing power with the odor of gasoline inside the cabin of the vehicle. The contact stated there was no warning light illuminated. The contact was able to drive the vehicle to the residence, but had not taken the vehicle to a dealer or mechanic. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 112,000.

Filed Jan 13, 2026 · Brakes, Fuel system · CA

December 12, 2025 I had to drive 20-30 miles an hour the car would not break I had to use parking break. When I would try to Stop it would continue to roll. The pedal was Hard! This is very dangerous and other cars have crashed There are also class action lawsuits regarding just this! Vehicle vacuum pump The Bill was $5200 I am asking for reimbursement! Vehicle vacuum pump engine light on tire sensor light on Saw there have been more cases

Filed Jan 5, 2026 · Engine, Fuel system · MO

Shift to park issue and fluid mixing in with engine

Filed Aug 29, 2025 · Fuel system, Transmission · 88,400 miles · GA

The contact owns a 2020 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of automotive power. The check engine warning light was occasionally illuminated. The contact pulled over to the shoulder of the road and restart the vehicle; however, the failure reoccurred. The contact stated that her husband scanned the vehicle and retrieved DTC: P1101(Mass Air Flow (MAF) Sensor Circuit Performance Issue). The vehicle was repaired but the failure reoccurred. The vehicle was diagnosed by another independent mechanic as a second opinion, with a Fuel/PCM Failure. The vehicle was not repaired. The local dealer was not contacted. The contact related the failure to an unknown recall however, the VIN was not under recall. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 88,400.

Filed Jul 15, 2025 · Acceleration, Engine · TX

Getting engine power reduced messsge in shop 4th time now in 3 weeks, 2 service bulletins, now they want to put new engine, found over 800 complaints about same issue on car complaint.com website and more on Reddit of same issue . Car wouldn’t go more than 5mph extremely traumatic on highway my son won’t get back in the car he is too scared.

Filed Jun 23, 2025 · Fuel system, Transmission · SC

P1101 AIR FLOW SYSTEM! I replacement almost every things ,but still have the p1101 code Park to Shift!

Filed Dec 20, 2024 · Fuel system · 180,000 miles · VA

The contact owns a 2020 Chevrolet Malibu. The contact stated that while driving approximately 65 MPH, the message "Transport Mode" was suddenly displayed, and the vehicle decelerated and stalled. After restarting the vehicle, the failure persisted. The vehicle was taken to the local dealer who serviced the throttle body, but the vehicle was not fixed. The manufacturer was not notified of the failure. The failure mileage was 180,000.

Filed Oct 4, 2023 · Engine, Fuel system · IN

Car has stalled out, or acted like it's going to stall out several times. No check engine light on so unable to identify the issue. There are recalls for other Malibs for similar problems, but it states this model is not affected.

Filed Sep 13, 2023 · Electrical, Engine · TN

The vehicle goes to ESC mode loses power an all gauges go frantic. All warming lights come on and the brakes go stop working. Speed decreases while in motion, unable to go past 40 mph. Warning messages such as put car in park will appear while the car is in park, steering unstable , low fuel a many others . This is a hazard and I only had the vehicle for 1 year, however I reported the first issue in April 2023 to dealer of purchase an no fix at this time .

Filed Feb 27, 2023 · Acceleration, Fuel system · FL

Vehicle through a "service engine" and lost partial power. The vehicle slowed considerably and was not able to accelerate as expected. Fortunately, this was rush hour traffic and it was slow. Normally, the traffic moves at 60 MPH plus or minus 5 MPH. The loss of power on I10 can be extremely unsafe. The dealer revealed that our car had a scan code P0299. They cleaned the Thottle Body and stated it was the likely problem. However, they said they tested the crank case pressure and it was at 0 PSI, instead of the expected vacuum. There was no indication, that crank case pressure or the PCV was the root problem. I pointed out that crank case should be measured in INH2O. I think they mis diaganosed and were trying to lead me to replace the PCV, and ultimately the turbocharger itself. I think it is probably a sensor or perhaps another component. I took my car away from the lot and will report any other incidents or findings.