2002 GMC Sierra 2500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2002 GMC Sierra 2500
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2002 GMC Sierra 2500 ProblemsCheck Engine Light Due to Gas Cap Issue
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
The spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.
It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.
2002 GMC Sierra 2500 Questionsspeddometer problems (2 answers)
speedometer quit working, how do i fix?