2012 Chevrolet Traverse: misfire or rough idle

Filed Aug 23, 2021 · Engine, Fuel system · TX

I was driving to the store and my car dinged and a message saying something like service stabilitrack flashed. The car slowed and I pulled over and turned off the car. Eventually I turned the car on and it was back to normal speed but then it sputtered like it was out of gas. That was 2 months ago. I've had it in the shop 2 times and my husband has been trying to replace every part suggested by gm and any other mechanic. The car continues to misfire and turn of at times during driving. This feature makes this vehicle completely unsafe. Any vehicle that simply cuts power should not be on the road as it poses unnecessary risk. Please do something.

Filed Apr 12, 2021 · Engine · 165,000 miles · IL

Check engine light came on had the codes checked and I had the engine taken apart twice because the timing chain had jumped causing it to run rough and light came back had to do again and it was fine for a few months but mechanic said the engine is the same as the enclave and acadia which both have had recalls on this issue. This happened the first time while car was in motion.

Filed Jan 31, 2020 · Driver assistance, Engine · CA

While driving at normal traffic and highway speeds, the vehicle will sometimes reduce speeds on its own and the transmission will drop to 2nd gear. The sevice engine light will flash and the dash will read traction control off. Sometimes the engine will also misfire. The vehicle will sometimes correct itself and return to normal driving or it has to be turned off to reset. Some forum users suggest replacing the throttle due to carbon buildup. This is can cause confusion with a driver which may result in a collision.

Filed Dec 16, 2019 · Engine · 116,640 miles · NJ

My wife was driving on the highway when it lost significant power and started rattling violently. She was able to pull into a business parking lot. Stabilitrak system, traction control, check engine lights all came on. After sitting for about 10 minutes, it started back up with less violent shaking but still with reduced power, she was able to 'limp' to the pellegrino dealership in williamstown, nj. It had fault codes p0300 and p0303 for random engine misfire and cylinder 3 misfire. They diagnosed as "minimally needing cylinder #3 fuel injector plus additional diagnostics afterwards to determine full extent of issue" first threshold would be $1500 and possibly several thousand possibly including an engine replacement. They offered $2000 trade-in toward another vehicle there. With hardly any diagnostics, I was surprised of 'possible engine replacement' diagnosis, so I took the vehicle to another shop to do the fuel injector replacement plus check plugs, coils (all good), clean remaining fuel injectors and intake manifold for a fraction of what the dealership quoted. Cylinder compression was good, but the same random misfire p0300 code and p0303 codes still come up and idles very rough with engine noise and significant reduced power. Clearly, the injector was not the root cause of the problem. If fuel is given more aggressively, all the stabilitrak lights come back up. In doing additional research online, it appears to be a common issue. Oil changes were performed routinely at the dealership since we had a "lube for life" contract. Mileage is 116,640.

Filed Nov 10, 2018 · Electrical, Engine · 180,000 miles · GA

The service traction control light comes on and then it will give you a misfire in one of the cylinders. Also the vehicle appears to almost shut down. The braking system on the car also feels funny. My mechanic has checked everything and cant find anything wrong. The stuff that I describe before is the latest things to occur.. I have complained for a long time now about the illegal tracking of this vehicle and all of my vehicles. I have made complaints to the department of justice, the media and to the internal affairs here where I live in gwinnett county georgia. This illegal tracking is being done for the purpose of gang stalking.....the tracking information on this vehicle and all my other vehicles has been shared with a large number of people.

Filed Jan 12, 2018 · Engine · 48,500 miles · PA

Problem started at 48,000 miles engine misfires, drops power when traveling at high rate of speed, service airbag, service stabilizer warning messages come up on dashboard along with all warning lights. Extremely dangerous when traveling and reduced power occurs. Chevrolet and service dealership are not standing behind vehicle and cannot find issue to repair the vehicle. I feel as though there needs to be a recall as this could cause a deadly accident when dropping to two engine cylinders while driving

Filed Oct 9, 2016 · Electrical, Engine · NY

2012 chevy traverse engine light and traction control light come on. Engine loses power and requires the vehicle to. E restarted to regain power. We have had the vehicle checked by the dealership 3 times for the same reason. The dealership has reset the computer each time. The last time the diagnostic computer the dealer has stated low fuel volume. The traction control and engine light come on the same day usually within an hour or two. The service advisor told us to try hi test ethanol free gas. We did as told with a fuel treatment they put in the tank. The lights still came on. When the traverse is started in the morning(cold start) the engine runs rough. This vehicle only has 47000 miles on it and was purchased new. We have alway kept the vehicle maintained. Last year the traverse started using oil a quart or more in 1000 miles when driven on long trips.

Filed Feb 19, 2016 · Engine · 76,530 miles · IL

While traveling at 70mph on interstate, the check engine light suddenly went on and I immediately lost power to 5mph with engine running roughly. I limped into chevrolet dealer who replaced mass air flow sensor and throttle body. Chevrolet claims there is no recall but a friend who has 2001 traverse was sent letter indicting a possible problem could occur indicating same circumstance-"the engine to run rough , cause the malfunction-indicator lamp/and or reduced power message to illuminate,and reduce the engines power. This condition is very serious and could have bee catastrophic.

Filed Sep 19, 2014 · Acceleration, Driver assistance · 22,200 miles · TX

Stabilitrac and traction control and engine light was flashing... Kept misfiring, took the vehicle to the dealership and I am still as of september 17 having the same issue... There has been no resolution.