2001 GMC Sierra 3500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2001 GMC Sierra 3500
2001 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.
2001 GMC Sierra 3500 Questions
The sound came on fast & is almost constant. Sounds like something is about to seize??
Brake pedal goes to the floor when applying. I have new rotors and pads all away round the truck, new master cylinder, but the brake pedal still goes to the floor when applying the brake.
have already reploaced plugs and wires