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.
The 4WD transfer case position sensor or the selector switch may fail causing the service 4WD message to be displayed.
2002 GMC Sierra 2500 Questionsspeddometer problems (2 answers)
speedometer quit working, how do i fix?