Vehicle Shudder problems of the 2012 GMC Terrain

Vehicle shuts off when slowing to a stop and have to restart in order to accelerate. That was looked at and �fixed� and now the vehicle shakes when slowing down and headlights dim as if it is trying not to shut off. Engine is very rough and rattles while starting to accelerate and accelerating. When brakes are pushed the car starts to turn off while in motion. When stopped, car shakes and there is a very hard knocking coming from the engine.

Oil consumption issue: I realized about 3 months ago that my car engine would shake a bit on start up and during idle. I took it into the dealership for a diagnostic test and was told that there was very little oil in the car and that it was burnt. I was very surprised because I have never had an issue like this before. So we got an oil change and that was that. Engine still shook on idle and during startup. 5000 miles later I realize that it is time for an oil change and check the dip stick and find that nothing appears on it, indicating that it is short at least 1. 25 quarts. I fill it up with 0. 5 quarts and still nothing on the dip stick. . Read more...