Recently my car has been trying to overheat when it has antifreeze in the reservoir. Also it has been trying to accelerate on it's own and when I put it in park or neutral the rpms rev up between 3 and 4 thousand rpms. The throttle is not sticking and the pedal is unobstructed. Where should I begin to try to fix this problem?
Pontiac Q&AAsk Your Question
1999 Pontiac Grand Am Question: Overheating and accelerating on its own
Answer #1hemicuda March 04, 2009, 12:47Master
You need to put a scanner on this vehicle and see what code comes up, I think autozone still does this.
Answer #2Yessir April 10, 2009, 14:48Rookie
My '99 does the same thing. Please let me know if you find out what causes it.
Typically, all I have to do is turn it off and restart it. Most of the time that seems to do the trick.
ReplyVisitor, December 28, 2010, 12:23
IAC sensor does it. just replaced mine today and the car doesn't accelerate on its own anymore...