I have a 1993 Pontiac Grand Am with a 2.5, it runs rough while idling or in gear.. but when i take off down the road it seems to run smooth. What could be wrong?

Asked by grandam93 May 17, 2014 at 10:17 PM about the 1993 Pontiac Grand Am 4 Dr SE Sedan

Question type: Maintenance & Repair

2 Answers

199,835

Possibly vacuum leak, idle air control valve dirty/faulty or dirty throttle plate.

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