2002 GMC Sierra 3500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2002 GMC Sierra 3500
Verified by mechanics, reported by drivers like you
2002 GMC Sierra 3500 Problems
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
The daytime running lights are prone to burning out. Our technicians tell us that the light sockets may show signs of heat damage but usually are OK. Always be sure to use the correct replacement bulb for the best life expectancy. The new bulb recommendation for 2001-2003 models is #4114K (trade number).
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.
2002 GMC Sierra 3500 Questions
I have a duramax 6.6 and once I drive for about a mile the ABS light pops on and the truck down shifts, bringing my speed down to about 55 mph. I have been told something about slack in the transfer case and then he change to something else not sure of this guy.