Question about 1999 Pontiac Grand Prix
Car stalls after idling for a little while (1-2 min) . If the car stays on the cars RPMs bounce up and down. Like its trying to stay running or something!
Bad oxygen sensor will make a car run rough.also mass air flow sensor egr valve sticking open or pvc valve open.idle speed control problems.have your car scan.because there are many sensor causes it to run rough.
Posted on Apr 16, 2009
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Posted on Jan 02, 2017
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