Originally Posted by Dougs
In a word "yes!" The engine cover was letting air get in to the throttle body without going through the air filters. This would cause rough idle and possible poor throttle response. Glad you caught the problem early.
thank you for your reply, for the life of me I don't understand how the service dept could let this happen, guess I will have to check it after next oil change, the problem has not occurred since I reinstalled the engine cover, I will keep my fingers crossed