2018 Chevrolet Malibu fuel system problems

Filed Aug 6, 2026 · Engine, Fuel system · 169,000 miles · LA

The contact owns a 2018 Chevrolet Malibu. The contact stated that there was an abnormally strong gasoline odor coming from the vehicle. The contact stated that while driving at various speeds on several occasions, the accelerator pedal was depressed, but the vehicle failed to respond, requiring the driver to pull over to the side of the road. The message "Engine Power Reduced" was displayed. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the fuel injectors had failed and needed to be replaced. The mechanic retained the vehicle and informed the contact that it was unsafe to drive due to a potential fire risk. The vehicle was not repaired. The dealer was contacted and confirmed that the VIN was not under recall. The dealer advised the contact to bring the vehicle in for service. The manufacturer was notified of the failure and confirmed that the VIN was not under recall. The failure mileage was approximately 169,000.

Filed Jul 30, 2026 · Acceleration, Electrical · IL

A software error in 1.5L turbo model disable fuel injectors, preventing the engine from starting or causing a sudden stall while driving. It’s been confirmed to be an previously opened recall that was fixed by previous owner. But, is happening again to me. Yet I’m being told It has been closed and cannot be fixed unless I pay out of pocket. There are warning signs that pop up like reduced speed while I am driving etc. which reduces my speed and is incredibly unsafe.

Filed Apr 23, 2026 · Electrical, Engine · 75,000 miles · CA

The contact owns a 2018 Chevrolet Malibu. The contact stated that while his daughter was driving and stopped at a traffic light, while depressing the accelerator pedal, the vehicle failed to respond, and the vehicle lost automotive power. The contact stated that five minutes after restarting the vehicle, the vehicle operated as intended. A dealer was contacted. The vehicle was taken to dealer, where it was diagnosed that the engine control module needed to be replaced. The contact stated that the failure had occurred on several occasions. The vehicle was not repaired. The contact associated the failure with the federal safety agency Campaign Number: 19V642000 (ELECTRICAL SYSTEM, FUEL SYSTEM, GASOLINE, ENGINE); however, the VIN was not included in the recall. The manufacturer was notified of the failure. The failure mileage was 75,000.

Filed Apr 20, 2026 · Driver assistance, Fuel system · 130,000 miles · GA

The contact owns a 2018 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, a fuel odor was detected, and the vehicle failed to accelerate above 30 MPH. The check engine warning light was illuminated. Additionally, the rearview camera intermittently failed to display while reversing, and the vehicle made an abnormal clicking sound. Upon inspection, the contact discovered a fuel leak beneath the engine. The vehicle was towed to the residence, where an independent mechanic determined that the fuel line needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to file a complaint with the federal safety agency Hotline. The failure mileage was approximately 130,000.

Filed Apr 10, 2026 · Electrical, Fuel system · 150,842 miles · IL

The contact owns a 2018 Chevrolet Malibu. The contact stated that there was an oil leak coming from the engine. While driving at an undisclosed speed, the message "Engine Power Reduced" and "Service Stabili-trak" were displayed. Occasionally, the automatic emergency braking activated unexpectedly, and while the vehicle was stopped, the vehicle shuddered abnormally. The vehicle also decelerated and stalled occasionally. Additionally, the volume on the radio was stuck, the steering wheel command controls failed to operate as needed, and the air compressor was recently replaced. The contact associated the failures with the federal safety agency Campaign Number: 20V668000 (POWER TRAIN), 19V642000(ELECTRICAL SYSTEM, FUEL SYSTEM, GASOLINE, ENGINE), 18V400000(AIR BAGS), and 18V358000(FUEL SYSTEM, GASOLINE); however, the VIN was not included in the recalls. The vehicle was taken to the dealer where it was diagnosed with air compressor failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 150,842.

Filed Mar 4, 2026 · Fuel system, Steering · CA

In 2020, I received multiple red recall notices in the mail regarding a safety issue. I scheduled an appointment with a Chevrolet dealership in Los Angeles and have a voicemail confirming the appointment. At the time, I did not follow through with ensuring the repair was fully completed, which I take responsibility for. However, the vehicle has continued to experience the same dangerous symptoms. My vehicle continues to display sudden “Engine Power Reduced” warnings while driving at freeway speeds. The car abruptly slows down and limits acceleration, forcing me to pull over and turn the vehicle off and back on to reset it. During these events, the steering wheel becomes extremely difficult to turn, creating a dangerous situation, particularly at high speeds. The vehicle also appears to have ongoing issues with the push-button start/stop system. Although I did not pursue the issue further at the time, I am now seeking to have it properly addressed because the safety risk remains and another family member is currently driving the vehicle. When I recently attempted to verify the recall status, both the Chevrolet website and other sources show no open recalls. However, the symptoms persist exactly as before, I cannot find the little red notices that were sent but I do have a voicemail from someone at Chevy confirming the appointment that I made because of the recall notices. This issue presents a serious safety hazard due to sudden loss of engine power and steering assist on highways. I respectfully request investigation into whether the recall was improperly marked as completed. Furthermore, can you provide me with the full recall and service history on my VIN including closed recalls and warranty repairs? I know recalls do not expire so I’m confused as to why no one wants to help me now. I appreciate your time.

Filed Jan 17, 2026 · Electrical, Fuel system · AZ

The vehicle shut off in the middle of the street. I had to get it jumped to start again. There was a fuel leak. Car is still smelling like fuel after getting it repaired. The vehicle doesn't alert if your close to a car or anything

Filed Nov 22, 2025 · Acceleration, Brakes · UT

After diagnostic troubleshooting from DTCs on a check engine light, it was discovered that the brake vacuum pump connected to the engine was completely nonfunctional. Previous symptoms included stiff brake, loss of brake power at random brake periods which could have cause and accident with other drivers, and finally malfunctioning sensors attributed to the exhaust system. This also led the vehicle to be unable to pass state regulated Emissions testing because of the inability to maintain proper emissions levels. Brake Vacuum pump that was removed from vehicle to inspect and diagnose is still available for inspection. Recent findings show that Chevrolet/GM is aware of the issue in their vehicles but refuses to address or replace faulty brake vacuum pumps. It is a common problem amongst 2013-2022 Chevrolet Malibus. Vehicle that is in question was inspected by a certified mechanic shop with failed emissions test. Solid check engine light appeared once the brake had become harder to push and stop the car. OBD scans show DTC codes that were pertaining to MAF and MAP malfunctions in readouts and communications to the ECM. After further inspection, the ABS module had been acting as "backup" for hydrolic brakes system that had zero vacuum to power the brake booster, this could have caused the engine to stall, longer than normal stopping distances (stronger risk of rear ending other drivers), and multiple components and sensors to fail, requiring them to also be replaced.

Filed Nov 17, 2025 · Engine, Fuel system · 123,074 miles · TX

The contact owns a 2018 Chevrolet Malibu. The contact stated that there was a strong fuel odor coming from the vehicle. The contact stated that the engine was difficult to turn over. The TPMS warning light was illuminated. The vehicle was taken to an independent mechanic who determined that the fuel injectors were leaking. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 123,074.

Filed Oct 8, 2025 · Acceleration, Electrical · FL

Every so often I get an indication of engine power reduced, but every time I go in to get it checked it's off. I have recently just learned through research online that the issue is caused by a certain condition that gives false reading to the electronics. I have contacted GM and GM financial about the recalls on my cars of the same year. I have not been in a wreck but I have had the issue of engine reduced power in the middle of traffic. Cox Chevrolet in Bradenton has turn me away about the issue GM financial is giving me the runaround neither one mention anything about a recall instead I get a estimate $400 /$808.50/1900.41 all to fix ECM as I told the mechanic I was driving with no problem through the day me and the kids at the park when it was time to leave the car sounded like it just didn't have no gas. We was stuck tell 10:45 we waited two hours for the tow truck. I have OnStar and get monthly reports on my car. When the check engine light comes on OnStar has no indication that's why I believe it is the same ECM. I was told by Chevrolet Maher service manager of St Pete to get my car off their lot as I said before I got a estimate of 400 that went up to 800 and all I did was ask why