One problem related to engine noise has been reported for the 2018 GMC Terrain. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 GMC Terrain based on all problems reported for the 2018 Terrain.
My vehicle is stalling and stuttering while trying to accelerate. It also does the same when decelerating. The truck will jerk and stutter. Also making noise like a vacuum cleaner while this is going on. I just purchased this vehicle in September 2018 and it has been going on since November 2018.