2001 GMC Sierra 2500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2001 GMC Sierra 2500
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2001 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.
2001 GMC Sierra 2500 Questions2001 gmc 2500 sierra won't turnover or start. (1 answer)
I drove 45 miles the other day and then turned my truck off for about 10 minutes. I tried to turn the truck on and it tried to turnover once and didn't start, I turned the key to the start position about 3 or 4 more times and nothing happened, I waited a second and tried one more time and it ...
When I activate my washers, fluid is forcibly blown out the top of the reservoir.
I do get fluid onto the windshield but am losing a ton of fluid out of the top of
the reservoir. How do I correct the issue?
the plug gap changes to .040 from .060 with stock and platinum plugs. What are the bet plugs to use in my 6.0 liter engine?