NHTSA Complaint #11549259 — 2020 CHEVROLET MALIBU

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number 11549259
Vehicle 2020 CHEVROLET MALIBU
Component ENGINE
Date of Incident
Date Filed
Mileage N/A miles
Crash No
Fire No
Injuries 0
Deaths 0
Vehicle Towed No
State IN

Consumer Description

I purchased a brand new, 2020 Chevrolet Malibu in March of 2020. The car had 90 miles on it when I purchased it. Those 90 miles were on it due to it being driven to me from Illinois because the dealership in Illinois had the exact car and color I wanted. In late 2020 I started having reduced engine power. The car would mis fire, randomly lose engine power and only allow me to drive below 40mph and the check engine light would come on. Early 2021, I kept having these issues and called the dealership where I purchased the car and they stated that the throttle body was bad. The throttle body was replaced along with a new hose clamp for the hose that connects to the turbo. I have continued to have the same issues since then. When accelerating above 4000rpm's, the car will stall and say "Engine Power Reduced." This causes the engine to completely stall and has almost caused me to be in numerous accidents. I called the dealership and they came and got my car from my house with a truck and trailer. I was advised to not drive it because one of the codes was "Engine Oil Pressure Circuit Stuck Closed." They picked it up on Monday, 10/2/2023. The next day, 10/3/2023, they called me with a diagnosis. Cylinders 3 & 4 were showing over 1,000 misfires, engine oil pressure circuit stuck off, engine oil pump pressure, and an under boost code. I was informed that my spark plugs may be bad. Turns out, according to them, it needed new spark plugs. The spark plugs and air filter were replaced costing me $500 on top of the $600 that I paid for the new throttle body and hose clamp for the turbo. I got my car back last Wednesday, 10/4/2023. Today, 10/10/2023. The dash said "Engine Power Reduced", the engine stalled, and I was almost hit again because my car would not accelerate. This is a common problem with Malibus and it is a serious safety risk! GM had a lawsuit against them in 2018 for this SAME ISSUE with Malibus. GM needs held accountable BEFORE a life and/or lives are lost!!!!

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