Question about 1998 GMC Jimmy
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
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.
Posted on Apr 19, 2009
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Posted on Jan 02, 2017
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