Originally Posted by
Samuel
My 2004 coupe has decided to upshift to OD (5th) at slower speeds (35MPH and less). Cant' seem to find a good dealer here to get a code (none of the techs know crossfires). During warm up it shifts normally, then gets a noticeable "bump" while shifting up. It has even shifted into OD while stopping, causing the motor to die. Perhaps on another subject (?), my spoiler now stays deployed full time???
Sam, if the transmission hasn't had a fluid and filter change I'd suggest you start with this service. New fluid, new filter and new connector plug can make a world of difference in shifting smoothness for reasonable cost.