car will not idle below 3500rpm and will not shift into overdrive but at times it will run normal check engine light is off hooked up a scanner no codes any ideas?
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1996 Pontiac Grand Am
Question: will not idle below 3500 rpm
Answer #1Bret Bodas from RepairPal Test Shop, December 13, 2009, 19:50Master
This can be due to many things, and the next step is to have it diagnosed. I'm assuming the Check Engine Light is on, is that right?
Replynitrojoe, December 14, 2009, 14:04Rookie
no the check engine is not on at times the car not go into overdrive and idles around 3500 rpm but i can shut the car off and sometimes it runs perfectly normal i wish the check engine light would come on i plugged it to scanner no codes got me puzzled
ReplyVisitor, July 14, 2010, 13:29
check throttle position sensor....