2000 GMC Sierra 2500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2000 GMC Sierra 2500
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2000 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.
2000 GMC Sierra 2500 QuestionsMy fuel gauge would not work on long trips it froze and wouldn't move until I turn the truck off. I replaced the fuel pump and the sending unit and still the gauge freezes up. Any ideas (1 answer)
Truck has 100,000 miles on it. Just a long trips. When Im idling the gauge moves.
Fuel pump is working fine.
The Green lamp light on the dash is on but no daytime lights. The head lights work fine when you turn them on.