Question about 1998 GMC Jimmy

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Service Engine Soon Light

While I am idling the service engine light stays on. Once I speed up to 25-30 mph and faster it flashes. Also the car started to run rough when this started

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  • Anonymous Mar 16, 2014

    The engine runs well once you are over 30 mph but when i stop and take off again it shutters a little .

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  • 243 Answers

The best way to know what is happening there is to drive a GMC dealer and get them to hook in the diagnostic tool and read the computer memory for present faults.
Cheers

Posted on Apr 19, 2009

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Posted on Jan 02, 2017

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