2014 Chevrolet Malibu engine problems

Filed Sep 11, 2025 · Acceleration, Engine · NE

Received vehicle at roughly 181,000 miles. Operated fine for about 5,000 miles and then began to show problems. In most cases when pressing down hard on the accelerator pedal, transmission drops into a lower gear and revs up to 5k rpm, cancelling cruise control, and staying there until accelerator is relieved. This makes accelerating more difficult since too much pressure on the accelerator pedal causes the car to get stuck at 5k rpm and stay at the same speed it is already at. This makes passing cars more dangerous as the car gets stuck at 5k rpm and can't pass the other vehicle, increasing the risk of a head on collision. Service engine and ABS lights are on as well as a service Stabilitrak notification in the driver information center. In addition, the outside temperature thermometer is faulty and shows much lower temperatures, such as -14 degrees during an 80 degree day. Vehicle is up to maintenance as far as my knowledge goes. Car has been previously junked twice and has a rebuilt title. There are no fluid leaks, the engine works well when the problem is not encountered, but it gets stuck at 5k rpm under hard acceleration more than it doesn't.

Filed Jul 23, 2025 · Engine, Fuel system · UT

Automatic Start/Stop feature is faulty! When it activates, it prevents the engine from restarting for several minutes. This puts myself and others in my car at a major risk of getting in an accident. I have so far been lucky and avoided any accidents. Several thousand has ben spent to try and fix the issue, with no luck.

Filed Jun 30, 2025 · Electrical, Engine · IA

The headlights burn out frequently the air conditioner does not work the ignition had to be replaced there's always a code of p0171 the start/stop feature does not work the brakes make the car shake. When does stuff takes place I have to pull the vehicle over cousin me to put others in danger by being on the shoulder of the road broke down. Yes the car is available for inspection. The radio randomly turns on and off therefore the backup camera does not work as it should why this vehicle has not been recalled is beyond me.

Filed Apr 30, 2025 · Engine · 213,310 miles · MS

The contact owns a 2014 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the vehicle stalled and jerked with the check engine warning light illuminated. The vehicle was able to restart. The vehicle was taken to an independent mechanic and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 213,310. The VIN was not available.

Filed Apr 4, 2025 · Engine · 105,670 miles · TX

The contact owns a 2014 Chevrolet Malibu. The contact stated that upon driving four miles at approximately 35 MPH, the engine overheated. The message "Engine Overheating" was displayed. The temperature gauge increased to Hot. The contact turned off and restarted the vehicle. The contact added water to the vehicle, but the water drained out. There were no warning lights illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed that the heater coil had failed. The local dealer was contacted and confirmed that the VIN was not under recall. The vehicle was not repaired. The manufacturer was contacted and referred the contact to the federal safety agency Hotline for assistance. The failure mileage was approximately 105,670.

Filed Mar 3, 2025 · Brakes, Electrical · MA

This is now the THIRD time this has happened, and GM doesn't seem to care, because when my mechanic "fixed" my auto stop problem, it was because GM themselves got the code to "fix" my car. My auto stop worked one time, before today, after my repair last week. I was at a stop light where my auto stop turned on. My brakes WERE STUCK AND COULDN'T BRAKE so I put it in park! THE SAME ISSUE WITH THE WHEEL AND BRAKE LOCKING OCCURRED. GM FIX THIS!

Filed Feb 14, 2025 · Engine, Steering · MA

When I was on auto stop, my car never started back up. The steering wheel and brakes were frozen, and I could barely pull off the road I was on. Turning the key did not help, as the engine wouldn't turn back on.

Filed Dec 23, 2024 · Brakes, Engine · TX

I am filing a complaint regarding a 2014 Chevrolet Malibu that I purchased from a dealership on November 22, 2024. The vehicle was advertised as being in “excellent condition” at the dealership’s site. During the test drive, I raised concerns about potential transmission issues, but the dealership assured me that the vehicle was “clean” and safe to drive. Unfortunately, this assurance turned out to be false, as the vehicle has since displayed significant mechanical failures, including overheating issues, that pose serious safety risks. Within a week of purchase, the vehicle broke down twice: first on November 29, while driving to work, and again on November 30, while on I-10 Katy freeway. The second breakdown created a life-threatening situation as the vehicle suddenly lost power in traffic. I incurred towing costs of $125 to return the vehicle to the dealership. After an attempted repair, the vehicle was returned to me on December 5, 2024. However, it broke down again on December 8, 2024, requiring another tow. Since that time, the vehicle has remained at the dealership, yet no adequate resolution has been provided. Additionally, I have since discovered that the vehicle has persistent overheating issues that were not disclosed at the time of sale. These overheating problems pose a serious safety risk as they could result in a fire or explosion, endangering my life and the lives of others on the road. The dealership’s negligence in addressing these critical safety concerns demonstrates a disregard for consumer safety. I believe the dealership knowingly sold me a defective vehicle with significant mechanical issues that were either hidden or misrepresented. The sudden and repeated breakdowns, particularly in hazardous driving conditions, and the risk of fire or explosion due to overheating, warrant immediate attention from the federal safety agency.

Filed Dec 6, 2024 · Electrical, Engine · AR

powertrain there is a problem with auto stop restarting then dying. The transmission not engaging after a complete stop like it is neutral this only happens after the car has been driven a bit everything at temp. today stopped for trash service auto stop engaged got ready to go nothing gunning and gunning never died like no power though finally moved no more stops till home a problem sitting in road can not move. have not taken to shop yet money for it now not.

Filed Dec 2, 2024 · Engine, Fuel system · SC

P0420 code