2004 Pontiac Grand Am Q&A
2004 Pontiac Grand Am Question: Engine Reving Up
Engine timing usally gets advanced when the AC is turned on so in that sense the engine may run faster. I suspect you have a stuck Idle Air Control Valve,it is what controls normal Idle speed. You can try to remove it and spray with WD40, they build up carbon or get cooked from engine heat,,,, - Visitor
I have a 2001 Pontaic Grand AM with 97,000 miles. In Aug. the engine started to rev real high & if I had to stop for any reason the car did not want to stayed stopped. The temp gauge would start t...