It only does it when the engine is cold. They spent 3 hours trying to align it and never did get it right. Sad thing is my warranty ran out the day before. I spent $2.100.00 on 2 warranties and $1.600.00 for 16 trips to have something repaired. Cost me $100.00 deductable each visit. Seemed like every time I took it to them something else went wrong within a day or two after bringing it home.