I just recently purchased a Dodge Charger used from a car lot. It ran fine for about a week. All I did to the Charger was add a Cold Air Intake. I can't really say before or after I added the CAI is when the whining/shifting issues started. It doesn't jerk around alot, but seems to hang sometimes. Also, it whines during acceleration. The sound doesnt really go away. When I drive on a cold start, the sound is non-existent. Suggestions?