2010 GMC Terrain: misfire or rough idle

Filed Dec 15, 2025 · Engine · 120,000 miles · TX

The contact owns a 2010 GMC Terrain. The contact stated that while driving at an undisclosed speed, the service stabili-trak and check engine warning lights were illuminated. The vehicle was taken to O’Reilly Auto Parts, where it was diagnosed with a misfire in cylinder #3. The vehicle was then towed to an independent mechanic and the contact was informed that there was no compression in cylinder #3. The vehicle was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The vehicle was towed to the dealer, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. In addition, the contact stated that several oil consumption tests were performed by the dealer over the past three years. The contact stated that after each oil consumption test was performed, the oil pressure was always a quart or more lower when checked; however, the contact was informed that it was not an issue. The manufacturer was not made aware of the failure. The failure mileage was approximately 120,000.

Filed Dec 20, 2019 · Acceleration, Engine · 80,000 miles · IN

2010 gmc terrain with v6 loss of power, engine codes timing issue, camshaft sensor fault, crankshaft sensor fault. Stabil-track fault. Rough idle, oil consumption. The list goes on. This is a common thing with these engines and gm has done nothing. This has been going on with this vehicle for awhile. Stay away from gm vehicles they do not stand behind there products, I will be buying a ford and I will tell everyone I know!

Filed Oct 19, 2018 · Acceleration, Driver assistance · 98,000 miles · IL

While driving my car the stabili-track service light comes on. Then the check engine, brake, ABS, awd, as well as the power steering lights come on. Then I lose power steering and my speed is throttled down a lot. Its happened on the expressway and city streets. When on the expressway I have to immediately get to the shoulder without getting into an accident. I've had my car towed to the mechanics shop multiple times and they've told me that there are no codes when hooking up the computer. They kept it a few times in the last 3 years and have told me there were misfires after letting the car sit and testing it out (test driving) and work was needed (throttle body replacement, spark plug replacement, cam shaft swap out and a full tune-up). $1000 and less than a year later it happens again and then again. This is the 3rd year (2016, 2017, 2018) it has happened to me in a row and all the mechanic can say is that it may be something gm should investigate. I've called gm with no luck. This is extremely unsafe and I am thankful that my kids were not in the car when it happens. Trying to navigate traffic on the expressway when your car throttles down to 25-35 MPH is insane.

Filed Aug 5, 2016 · Engine · 77,000 miles · NC

Check engine light has illuminated multiple times. A rough idle was initial indication something was wrong. I have had the vehicle tested multiple times and have been told from dealership and other mechanics that it is a timing issue. The vehicle will start and drive. Safely problem is while driving through a busy two way intersection, after coming to a complete stop, the vehicle would not accelerate as needed almost leading to an accident. Under normal working condition I would have had no problem making it through the intersection in a reasonable amount of time. It very slowly puttered through the intersection while I had the accelerator pushed to the floor board and after finally crossing the intersection began to accelerate at an unexpected speed. I began to accelerate so unexpectedly that I temporarily lost control of the vehicle and crossed into the incoming lane of traffic.

Filed Jul 25, 2015 · Engine · 35,000 miles · IL

I've had issues with this engine since I first leased the car brand new in 2010 and eventually bought it. The service stabilitrak warning light came on at various times, coupled with really rough idle. I didn't think much of it as it was so random I never thought I had a serious engine defect. In july of 2014 I was driving about 60 miles to work one way, and that is when the real trouble began. The service stabilitrak error message would come on several times during those car trips reducing power. I would pull over to the side of the road and turn the engine off, turn it back on, and most times the car resumed normal driving condition. One day in july 2014 the car just died, it wouldn't run. I had it towed to a gmc dealer and they said it was under warranty as I had under 36,000 miles on the vehicle. They replaced transmission, transaxle, tensioner, chain, chain package, gasket, water pump, and balance shaft replacement. They also reprogrammed ECM and performed more diagnostics on service engine soon warning light. From january 2015 thru july 2015 I've had horrible issues with service stabilitrak errors and the engine going into low power mode. It would go away long enough periods that I just didn't get it looked at but now it comes on reducing power every time I drive the car. I really hope this is covered under warranty somehow or able to be fixed through recall. I feel like I got a lemon from the beginning but didn't know until much later. I'm hesitant to take it into a dealer again now after reading so any horror stories about how the dealers are guessing on how to solve the issues and from my own experience of not getting my issues resolved by the dealer. I'm not blaming the dealer, but it seems there is a fundamental design flaw with this engine.

Filed Mar 9, 2015 · Engine, Fuel system · 74,941 miles · TX

2010 gmc terrain started making a rattling noise and shaking a stop, like a rough idle, took it to the dealership to get it fixed under warranty, had to replace water pump, balance shaft chain and tensioner replaced intake and exhaust. Camshaft position actuators and bolts replaced high pressure, fuel pump replaced v/c gasket timing chain tensioner and left timing chain guide. That was replaced 09/07/13 in warranty. Now it is 3/09/15 and the same problems have come up again and my car is currently in the shop at the dealership , that means there is a serious problem with this make of engine and it should be recalled before someone gets hurt because of it.