car idles as high as 3000 rpm also idles high when driving. service engine light not on it doesn't do it all the time.
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2005 Pontiac Grand Am Question: My car idles too fast
Answer #1Oakman April 15, 2010, 11:45Master
A faulty throttle position sensor can cause an intermittent high idle. So can a sticking throttle valve or throttle cable issue. Some checks will need to be made when the fault is present in order to determine what the case is. If you need the help of a local repair shop please use the following link to find a shop near you - http://repairpal.com/directory?address=37385&car_brand_names=Pontiac.