2016 Chevrolet Malibu

The contact owns a 2016 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the "Reduced Power Engine" message displayed and the vehicle inadvertently decelerated. The brake pedal was firm while depressed and the vehicle failed to stop immediately. The vehicle was towed to an independent mechanic, who diagnosed that the vacuum pump needed to be replaced. The vehicle was then taken to the dealer, where it was determined that the vacuum pump deteriorated and went into the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 138,000.

I started smelling a strong smell of gas while operating the vehicle. Took to a dealership who diagnosed a turbocharger clamp and exhaust failure. From what I understand I am not the only one with a clamp/exhaust/seal problem. A friend of mine who owned a GM product had similar problems to the point her engine failed altogether. Please investigate!

A couple days ago I went to drive my car and it took a second to actually turn on and it was shaking way more than usual and pooped up with a message saying “engine power is reduced” I haven’t drove my car since because i tried and it was moving very slow, and i also didn’t wanna cause further issues. For some time now my car has been shaky. i have taken it in and balanced my tires because of this issue and nothing had helped. I am always scared to drive it because it has been so shaky but now that this message has popped up it’s even worse and it’s during my whole drive. Also every time i park it isn’t connecting and says “shift to park” even though it is shifted into park. i have to shake it and press some button to go all register that it is shifted into park and can shut my vehicle off. I have read every where that this issue has happened to so many 2016/2017 chevy Malibu’s. I have read the dangers and i do not feel safe driving my car like this. I also didn’t have my car when there was a recall on this exact part before. and i’m guessing the dealership who had it before me did not fix it, causing the problems to worsen other parts of my car. I can’t drive this car due to the safety and i believe it should be a recalled. I am not totally sure what is doing it but as of all the other people online, they said it has to do the gas pedal (2k replacement) and fuel pumps and also could have burned wires which my car also has. thank you.

I experienced a check engine light and a "reduced engine power" message in the middle of traffic in the stromy rain. I was driving 35 to 40 mph before vehicle slowed to almost a stop and when pressed gas pedal it excel slowly creeped to less than 30 MPH THANKFUL I wasn't rear-ended.Pulled into nearest Autozone part store and diagnostic scan showed the P2138 code. DC severity, sensor, and accelerator pedal position - see photos attached. Waited with engine off for approx over 30 minutes then started vehicle , engine lght off and proceeded to my destination excell with no issues.This has happened several times since purchase of vehicle began 2019. Throttle body repairs, ECM replacements and harness repairs later still reoccurring documented at dealships and repair shops. This is a serious and costly hazard.

Update to claim #11614644. Car was inspected by Auto Lenders in Lakewood, NJ. Vacuum pump failed and cam shaft has to be replaced, was told the engine **SHOULD* be salvageable. They won't know until they start taking it apart. Was told it will take 12 hrs for each part at $180 an hr. Damage is estimated at $4500. Car is currently under an extended warranty, we are waiting to hear if the warranty will cover the damage. My son still owes $9000 on the car, we bought it 2 yrs ago. Beyond angry that Chevy/GM has not recalled this car!!!

Vacuum pump failure. Brakes failed while driving the car, brakes became manual power but was able to pull over safely. There was no previous warning or error codes. Car is currently at a Mr. Tire facility. The manager ran diagnostic code - "reduce engine power" error and found the cause as the vacuum pump. Due to the time of the failure, late Saturday 9/14/24, the part cannot be ordered until Monday from the local Chevy dealership. The facility will not know if there is additional engine damage until the part is remove and inspected. There is known issues with vacuum pumps failing and a class action lawsuit currently in ligation.

The car will not turn off when placed in the park position. A warning comes on that states "shift to park" when the car is already in park. I have contacted Chevrolet twice and was notified that their are no open recalls on this. This is a very common and known problem with 2016-2019 Chevy malibu as well as Chevy Cruze model. Chevrolet is no help in this matter. I feel this is a large safety issue as you cannot turn the car off. PLEASE HELP!

The main head gasket fails on these vehicles causing oil to leak everywhere and on top of electrical wires. The lost of oil has caused the engine to reduce the engine speed randomly on the highway which had risk of accidents multiple times, by unable to move the vehicle off the road at a reasonable time. The oil sips land on top of electrical wires which creates the risk of fire.