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 ProblemsImproper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator
One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.
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.
2002 GMC Sierra 2500 Questionsspeddometer problems (2 answers)
speedometer quit working, how do i fix?