2020 CHEVROLET MALIBU Engine Problems

Shift to park issue and fluid mixing in with engine

Throwing code p1101 for the mass air flow sensor. This is a listed recall amongst other Malibu's but does not include my vin number. Check engine is on.

Vacuum pump blew . Causing me to lose brakes on the highway. It led to a series of events. Camshaft broke in the midst of this so my car will not start again.

My car has been malfunctioning it keeps saying shift to park when it’s park and it show esc system issue and then the brakes stop working it has been going on and off took it to Lou bachrodt Chevrolet and they couldn’t fix the issue. I have done research online and it shows the same

Th e brakes are not working at all. We have to go slow then the brakes are hard to press. Th I s makes it keep driving anc brake pedal doesn't stop it.

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.

For over a year now my car has been giving me the SHIFT TO PARK warning when I am in park. Happens several times a day, every day. Seems to be taking longer for the warning to shut itself off and allow my to turn car off and lock. Im not sure if my car is included in the recall but if it is NOT then it needs to be added as I am suffering on a daily basis with this issue. I am a single mother and cannot afford to miss work due to this and cannot afford to attempt to fix issue out of my own pocket. Please add my car to the recall list and help me fix this issue.

On [XXX] I was driving to work and my check engine light came on. Immediately after this I was completely unable to brake. My brake pedal became so stiff and impossible to press. I very narrowly avoided an accident. I had the car towed to an auto shop where I was informed that I had a vacuum pump failure that essentially exploded and destroyed my cam shaft and shot fragments of metal into my engine in the process. I was quoted over $12,000 in repairs. After receiving this quote I began searching online to find what could have caused this to happen. I stumbled upon a class action lawsuit for this EXACT same thing (plaintiff [XXX] ). In addition to the suit there were 12 PAGES of comments from other Malibu owners who have experienced similar issues with their vacuum pump and braking system. This issue is also noted on MANY car repair forums, Chevy owner forums, YouTube repair videos etc. Please note that when I received the check engine light on 9/5 this is the first and only time I had any indication of a potential problem with my vehicle. In the year and a half that I have owned the car there has never been any issues, warnings or check engine lights. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2020 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as needed. The contact stated that the vehicle stalled prior to accelerating. Additionally, the check engine warning light was illuminated. The vehicle was taken to an independent mechanic where the vehicle was diagnosed with power train control module failure. The contact was informed that the power train control module needed to be replaced. The contact was advised to contact the dealer. The dealer was made aware of the failure. The manufacturer was made aware of the failure but provided no assistance. The contact was informed of an unknown recall campaign; however, the VIN was not included. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 77,765.

Mileage: 77,765

The contact owns a 2020 Chevrolet Malibu. The contact stated while driving at approximately 25 MPH, the vehicle stalled. The contact stated no warning light was illuminated. Additionally, the contact stated that while shifting into park(P), the vehicle rolled backward before the contact could shift the vehicle into park(P). The contact had taken the vehicle to a local dealer, where it was diagnosed; however, the contact stated that she was not notified of what had been repaired. The contact stated that the failure reoccurred. The contact drove the vehicle back to the same dealer. The vehicle was not diagnosed and was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 70,000.

Mileage: 70,000

The brake pump in my 2020 Chevrolet Malibu LT 1.5 malfunctioned on 05/25/2024. My car had approximately 85,193 miles on the odometer when this occured. I was driving down the interstate on 05/25/2024 when I went to apply the brake pedal and it was completely stuck. I had to swerve into the grass on the side of the interstate to avoid collision. After I had the car towed home, I had a mechanic run a system diagnostic test on the car which showed an error/defective code for the brake pressure sensor.

Brake vacuum pump locked up causing camshaft to twist and reluctant wheel to turn which damaged the engine. I'm being quoted $10,000 to fix which was actually $1,000 more to fix but they accidentally under quoted me and have to honor the original estimate. I don't have that kind of money and still owe almost $14,000 on the car.

The power train may be defective. The auto shut off on the vehicle completely shuts off when you stopped at a red light. The entire vehicle restarts, and then 12 lights appear on the dashboard. The car starts shaking sometimes when it's being driven. The vehicle is currently being looked at, at the dealership. I was told that the diagnostics is reading 19 codes and misfires.

While driving on expressway, vehicle slows down suddenly. Service ESC, power steering, and engine light comes on and car tuns off. This has happened 8 times in two years with no fix from GM. This happens with no warning the car just stops driving and loss of power steering occurs. The dealership has tried to fix 8 times now with no real fix to the issue.

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!!!!

I was driving down the hwy and all of a sudden, my engine lost power and my brakes harden. I could not brake and nearly lost my life and my sons.

This issue started at approximately 19,500 miles. While accelerating to enter a highway or to pass a vehicle going less than 55mph on a two-lane, Service ESC light appeared on dash. Loss or power was also immediate and if I tried to accelerate to maintain speed, engine was very rough in responding with no acceleration. Engine continued to run. Within 30 seconds or so, acceleration is restored, and check-engine light was flashing. Check-engine light stopped flashing after a minute or so. Initially, this only occurred occasionally during fast acceleration as mentioned above. Lately this has happened during continuous acceleration, such as using cruise control, while climbing a low incline hill (~15˚). Over the past year or so, Chevy dealer has replaced, pistons, fuel injector, and did a carbon cleaning of engine. No solution yet.

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.

The ingine turns off while driving.

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 .

I purchased a 2020 Chevrolet Malibu with 38,000 miles. I experienced a faulty air vacuum pump (first experience was at 45,000 miles and was replaced in August of 2021, two months after purchasing the vehicle in June of the same year), and then the replaced air vacuum pump again in February of this year (2023). This issue being brake related was unsafe. I experienced an intermittent reduced engine speed message on dashboard, with immediate reduction of speed down to 20 mph or less while driving. This made me and others unsafe. I experienced brake booster failure, among other issues stemming from all aforementioned. The car is now said by dealership to have indication of an internal engine issue and affected PCV lines dealing with a defective orifice (Kiriacopoulos, et al. v. General Motors LLC, Case No. 2:22-cv-10785, in the U.S. District Court for the Eastern District of Michigan) The car remains at a dealership and has now been there for over 30 days. There was no warning lamps, messages prior to the air vacuum Pump/Brake booster issue. I got in the car to try driving, and it was hard to push the brake with foot, so for I knew something was wrong. In taking it in to service, was when it identified to be that issue. Those issues have been manufacturer inspected (dealership) and confirmed. I experienced these issues since purchasing the vehicle in June of 2021. I believe that GM knows of these issues and has put me at risk on the road, along with some other symptoms of the car failures that are also well documented, and that GM is aware of, with no recalls. These car parts/issues put me and others in further danger, the car's air vacuum pump and brake booster affecting car's ability to operate, damaging other parts (Johnson vs. GM).  Consumer rights to be protected and safe are at risk, not deserving to have faulty auto parts sold, further exacerbating issues with the car being dangerous on the road with defective brake related parts, and rendered inoperable.

Car demonstrates random full vehicle power loss while in drive mode both at stop and while actually in motion and driving. Vehicle had a catastrophic loss of all break power while going downhill. Luckily while leaving the Lincoln Memorial in DC driver was traveling slow enough and able to get vehicle stopped without immediate injury. Car brakes would not reengage without 3k repair to import/export value(see receipt). 2 days later check engine light returned. 2 weeks later dealer is still in discussion with GM to identify cause of engine failure.

The sensor for my gas cap was the first thing to malfunction, then My check engine light came on. Then the power steering sensor have me notice to drive carefully my drive assistance was malfunctioning. During my drive last night the power steering went out and the dashboard went dark several times.

I bought a 2020 Chevrolet Malibu LT on April 26, 2023 from Lake Hartwell Chevrolet in Toccoa Ga. It drove fine for 3 days. Then a chirping started in the steering wheel. On May 3rd. While I was taking my wife to our baby doctors visit, as I turned into the parking lot, the engine light came on, and the steering failed. I was able to safely get it into the parking lot and out of the way of the other cars. I called the dealership and they had it towed to their shop. They charged the battery saying that's all that was wrong with it. However, as the clean up guy at the shop was bringing it to me, the engine light came on again and he took it back to the shop. Within the next 14 days from then, they replaced the steering module, battery terminals, which seemed burnt, they said, and realigned it. However, all of this is word of mouth as I was not given any paperwork verifying this repair. The next day, the chirp returned. It has very loose steering and sways easily from side to side. Also, upon a diagnostic check by another certified mechanic, the computer would not link and give codes. He told me one of the computers in the car was bad, but not sure which one. I checked and I can not qualify for the lemon law, so I contacted the general manager and said I wanted to return the car and my bank returned their money. Or, another chevrolet car, from Chevrolet, not from this lot. This car is unsafe for me and my family. He said that was not possible as the tag and title has been processed. So I am ready to pursue legal action. The cars they let me drive during my cars repair were junky, too. One wouldn't drive over 30mph and the other had a ticking motor. I feel this business presents a danger to anyone who in need of and buys a car from them. Date of ownership: April 26, '23-present. Today is May 24,'23. They have also failed to give me the paperwork verifying the Chevrolet Lifetime Warranty on the Powertrain and Transmission. That was promised on the day of sale.

Shift to park error, No power to car, reduced engine power, camshaft positioning error, brakes failed (completely went hard unable to press) almost causing crash.

The contact owns a 2020 Chevrolet Malibu E2. The contact stated that while at a complete stop at the stop sign, the auto START/STOP mode engaged, however the vehicle failed to restart upon releasing the brake pedal. The message "Engine Reduced Power" was displayed. The contact stated that the vehicle failed to restart after several attempts. The vehicle was towed to the dealer where it was diagnosed that the vacuum pump had failed and the camshaft reluctor was in improper position. The dealer diagnosed that the vacuum pump and camshaft needed to be replaced. The parts were replaced. However, the failure reoccurred while driving. The contact stated while driving at 80 MPH and merging lanes, the vehicle decelerated unintendedly and the message "Engine Reduced Power" was displayed. The contact was able to veer to the side of the road. The vehicle was towed to a second dealer, Vandergriff Chevrolet (1200 W Interstate 20, Arlington, TX 76017), who informed the contact that he would need to tow the vehicle to the first dealer to be repaired. The vehicle was not repaired. The manufacturer was notified of the failure and advised the contact to tow the vehicle back to first dealer for additional diagnostic tests. The failure mileage was approximately 55,634.

Mileage: 55,634

The contact owns a 2020 Chevrolet Malibu. The contact stated while driving 35 MPH and depressing the brake pedal to slow the vehicle, the vehicle stalled. The contact stated that the oil change service light was illuminated. The vehicle was not drivable. The contact towed the vehicle to the local dealer, where it was diagnosed with needing the vacuum pump and engine to be replaced. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 90,000.

Mileage: 90,000

The contact owns a 2020 Chevrolet Malibu. The contact stated while driving 25 MPH, the odometer and tachometer readings were incorrect. The Services ESC, power steering, power steering assist, and check engine warning light illuminated. The vehicle was turned off and restated and operated normally; however, the check engine warning light remained illuminated. The contact stated that the steering wheel became stiff and the vehicle lost power brakes functionality. The vehicle was taken to an independent mechanic however, the mechanic was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was contacted and stated that the vehicle needed to be diagnosed by an authorized dealer. The failure mileage was 65,000.

Mileage: 65,000

Sometimes when I drive my car it loses power especially when I’m turning into on coming traffic it will lose speed and I’ve almost been hit on numerous occasions. I’ve taking the car to Chevy dealership 4 times already the last time they discovered transmission issues they repaired it. They tell me they don’t see anything else wrong. I have read reviews from other owners and they are experiencing the same exact problem

The contact owns a 2020 Chevrolet Malibu. The contact stated while driving approximately 65 MPH the vehicle was jerking and then inadvertently lost motive power. The contact was able to pull over safely. The contact was unable to restart the vehicle immediately; however, eventually, the vehicle restarted and was driven to the residence. The check engine warning light was illuminated. The vehicle was taken to the dealer and diagnosed; however, the mechanic was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 60,000.

Mileage: 60,000

The contact owns a 2020 Chevrolet Malibu. The contact stated that while driving at various speeds, the vehicle would intermittently hesitate and stall with the traction control and check engine warning lights illuminated. Once the vehicle stalled, the contact had to wait a few minutes before successfully restarting the vehicle. The vehicle had been taken to the dealer on multiple occasions however, the mechanic was unable to duplicate or determine the cause of the failure. The contact had the pistons, battery terminal, transmission, and wiring harness replaced; however, the failure persisted after each repair. The manufacturer was notified of the failure and referred her to the NHTSA for assistance. The vehicle had yet to be repaired. The failure mileage was unknown.

Reduce engine power warming lamp. Cars just suddenly loses power when driving at high rate of speed. Car slows abs f won’t go over 2ph causing hazardous situations and endangering occupants and other drivers. This issue has been repaired twice abs is now the third time.

I was at a stop light ready to take off while driving for lyft with a passenger in back and the car just quit running as i took off when light turned green no warning whatsoever no dash lights no brakes no steering i had to wait til car stopped rolling so i put car in park then i couldnt put in neutral to push car out of traffic lane. so while i was trying to call a friend for help about 5 minutes passed and i tried the ignition i had a reading on dash that said batterry saver on so i waited and tried again after 5 minutes and car started with battery saver on not knowing how that really works i called nearest chevy dealer about issue they said it was out of warranty for them to look at so i drove to autozone a local parts store to get car checked out for car not starting and the guy found battery was good and charging system ok so there was no code or nothing after getting it looked at to this date of report i had no issues so far but im worried and hoping it wont happen while im driving on highway and get rear ended if it quits running on me again i heard and read about a sotware issue on chevy malibu so im puzzled and afraid to drive this car that i bought new on january of 2021

while driving down a mountain in monterey tenessee from visiting a friend the car started blowing white smoke and all dash lights flickered before car shut off no brakes or steering while coasting down mountain almost got rear ended by pickup this was around 9pm it was dark i coasted into a gas station after a few attempts to start car . i called roadside assistance that night and got towed to dave kirk chevy dealer next town over after having issues with car i encountered issues with manager of dealer ship and roadside assistance neither could help til i started raising my voice i was stranded there in town for 2 days my friends felt bad the paid for my motel since i was so stressed out they didnt want to look at my car that manager said he knew nothing about after diagnosing my car they found a bad fuel injector that he said was open 100 percent so after 2 days i was on my way back to florida bad experience all the way around

Vehicle lost power after trying to go around a truck on the highway. Car will decline in power and traction light and engine light blinks for a period of 60 minutes some times longer. While in traffic you can not press the gas to go, leaving your car to decline in speed on the highway. Please recall the 2020 Malibu before someone get seriously hurt. Dealerships are aware. Do i need to get the news people involved? Mine has been happing since my purchase. ( New car purchase) service departments dont understand it either. Had my first cylinder and injectors replaced February 2022 , Second Cylinder and all injectors replaced April 1st. 2022. Horrible car

Engine loses power while driving. This happened the first time on 8/24/2. I was on the NJ Parkway in highspeed traffic . The vehicle would not drive over 25 miles an hour putting all occupants in the car at risk. The dealership repaired the vehicle The same loss of engine power re-occurred on 3/12/22 while driving at over 50 miles an hour. the car just slowed without warning, and I was unable to increase speed on a busy roadway

Engine loses power while driving. This happened the first time on 8/24/21 I was on the NJ Parkway in highspeed traffic . The vehicle would not drive over 25 miles an hour putting all occupants in the car at risk. The dealership repaired the vehicle The same loss of engine power re-occurred on 3/12/22 while driving at over 50 miles an hour. the car just slowed without warning, and I was unable to increase speed on a busy roadway

The contact owns 2020 Chevrolet Malibu. The contact stated while driving 50 MPH, the vehicle started shaking and inadvertently decelerated. The contact stated that the Service ESC and check engine warning lights were illuminated. The vehicle was not taken to a dealer nor independent mechanic to be diagnosed. The manufacturer was not notified of the failure. The failure mileage was approximately 19,000.

Mileage: 19,000

Engine Light came on before a full year of having the car. Started August 23 2021 the car will take forever to move like engine was lock up or something then when you put the car in drive it was go backwards and when you put it in reverse it will go forward. Car has a head of its own. I am pregnant I don’t feel safe In this car and this car is not safe for my baby to be in I spoke to different people who has the same car as me they experiencing the same thing 2019 and 2020 ..

Was traveling at about 58 mph down the highway when all my warning gauges starting going off. My digital dash went blank and the car started accelerating on its own. I kept hitting the brakes trying to make it slow down and I could hear the abs function and feel it thru the brake while trying to slow down. After about a 1/2 mile of fighting the car the dash turned back on the check engine light stayed on and the car stopped trying to accelerate but wouldn’t change gears and was stuck at 3500 rpms when I limped it off the road and had a tow truck come get it.

The contact owns a 2020 Chevrolet Malibu. The contact stated that the vehicle was equipped with the Auto START/STOP safety feature. The contact stated that while at a complete stop, the engine failed to start up while depressing the accelerator pedal. There was no warning light illuminated. The contact restarted the vehicle and normal vehicle operation returned. The contact called the dealer and dropped off the vehicle to be inspected. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was 21,647.

Mileage: 21,647

1. Something under the car hood is making a whistle type noise. Is available for inspection. 2. I don't know if it is a safety risk. 3. The problem has not been confirmed by the dealer. 4. The vehicle was inspected by the dealership. 5. There were no warning lamps on or anything. The whistling appeared under the hood around May 23,2021. 6. The whistling appears under the hood of the car after driving it approximately 30mins with the air conditioner on. 7. I took it to the dealership and they seem resistant to fix the problem!

Why driving on the Interstate with some congestion I made an attempt to accelerate from behind a slow moving truck and in doing so my car slows down as if it stalls in the middle of road. Engine light and traction comes on. During this I cannot apply acceleration until my car is ready. Normally I’d have to pull over but if I’m in traffic I can not. This has been reported to The dealership starting at 900 Miles. I was told it’s probably bad gas. I continue to report and was advised nothing is wrong. I have noticed a change in applying acceleration. Its more a force to go. This has been going on since the purchase. I am now at 19, 273 miles

Speed reduced, reduced engine power , hard breaking and noise ,engine light one , all gages flash, service esc! On dash

Unknown. Started vehicle for one minute and stalled. It is available for inspection. Safety was at risk cause I thought car wasn't going to start and stay idling. Problem has not been reproduced or confirmed by dealership.vehicle has not been inspected by dealership. There were no warning lamps or messages. This initial problem appeared on 5-20-21.

*First incident: Unknown. Could have been stranded. Not confirmed by dealership. First appeared on 5-20-21. I started car. After car started, the cars body started to shake all over with a hard vibration. Car was inspected vaguely by dealership and I was told nothing could be found. No lights came on, no warning.*Second incident: unknown. First appeared 5-22-21. After car started, the cars idle felt shaky a little. Also the acceleration slowed down on its own to where I could not speed up and I had to pull over or I could have been hit by multiple cars. Crash safety issue and stranded! Not confirmed by dealership. Going to be inspected again on 5-24-2021. There were no warnings or lights!

Acceleration slowed down and didn't want to speed up when gas pedal pressed. Car is available for inspection. Safety was at risk cause a car could of hit me. Problem has not been reproduced or confirmed by dealership. Vehicle has not been inspected. There were no warnings or symptoms. Problems appeared 5-20-21, 5-22-21, and 5-23-21.

Vehicle slowed down alot by itself upon driving and when pushing the gas pedal the vehicle would not go any faster. I had to pull over in someones driveway to get out of the way of multiple cars behind me! Car is available for inspection. My safety was very much in danger cause what happened to the car could have caused cars to hit me from behind! The problem has not been reproduced or confirmed by dealership. The vehicle has not been inspected by the dealership. There were no warning lamps or messages.

Unknown. Started vehicle and warmed it up for one minute. After that the vehicle shook and vibrated then completely stalled. It Is available for inspection. Safety wasn't the greatest cause I thought the vehicle completely died and would not be able to be driven. Problem has not been reproduced or confirmed by dealership. The vehicle has not been inspected by the dealership. There were not any warning lamps or symptoms. This is the first time the car died.

VEHICLE SEEMS TO WANT TO STALL OUT FROM TIME TO TIME WHEN PRESSING THE GAS

Mileage: 25,379

MY 2020 CHEV MALIBU PROMISED ON THE WEB SITE AND ON THE MSRP THAT IT WOULD GET "29 MILES PER GALLON IN THE CITY". THIS WAS ALSO PROMISED ON THE 2021 MODEL. I HAVE ONLY GOTTEN 24 MPH OR LESS IN THE CITY. THE CAR IS ONE YEAR OLD. I HAVE HAD THREE MEETINGS & SERVICE CHECK OUTS WITH THE DEALERSHIP AND THEY TELL ME THAT THAT THERE IS NOTHING THAT THEY CAN DO. SO, I NEED GOVERNMENT INTERVENTION TO FIX MY VEHICLE SO THAT IT GETS WHAT WAS PROMISED.

CAR LOST POWER WHEN PASSING A TRUCK ON THE HIGHWAY, HARD START,IMMEDIATELY CONTACTED DEALERSHIP. THEY HAVE HAD THE VEHICLE FOR GOING ON THREE WEEKS TOMORROW. THEY HAVEN'T BEEN ABLE TO DIAGNOSE THE PROBLEM. I HAVE CONTACTED GM AND THE SERVICE REPRESENTATIVE AT THE RESOLUTION CENTER SAID THE DEALERSHIP WAS NOT ANSWERING E-MAILS AND HE COULD NOT GIVE US ANY INFORMATION. THE SERVICE MANAGER AT THE DEALERSHIP SAID HE AND THE MASTER TECH HAD BOTH DRIVEN THE CAR AND BOTH SAID THAT THEY DETECTED A PROBLEM. THE SERVICE MANAGER SAID THE DIAGNOSTIC COMPUTER SHOWED EXCESS, OR UNBURNED FUEL IN THE #2 CYLINDER. THE MASTER TECH SAID HE PUT A BORE SCOPE INTO THE #2 CYLINDER AND SAW A BURNED OR DISCOLORED SPOT ON THE PISTON. THE SERVICE MANAGER SAID THAT A REGIONAL ENGINEER HAD COME DOWN FROM SPOKANE WA. AND DRIVEN THE CAR WITH ANOTHER DIAGNOSTIC COMPUTER. THEY STILL HAVE NOT DIAGNOSED THE PROBLEM, AND THE DEALER SAYS THAT GM WANTS US TO TAKE THE CAR BACK AND DRIVE IT. WE FEEL THE CAR IS UNSAFE AND WE ARE REFUSING TO DRIVE IT. THEY ARE NOT COMING UP WITH A RESOLUTION TO THIS SAFETY PROBLEM.

Mileage: 550