GMC Sierra 2500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your GMC Sierra 2500

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.

A dirty throttle body may cause a lower than normal idle and possible stalling condition. Performing a throttle body service will commonly correct this concern.

The 4WD transfer case position sensor or the selector switch may fail causing the service 4WD message to be displayed.

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The Green lamp light on the dash is on but no daytime lights. The head lights work fine when you turn them on.

My truck feels like it is in constant struggle to run...as if I'm running on less HP and low brakes

OK, I have a 2000 GMC SIERRA 2500 6.0L V8. I just recently purchased this truck and have noticed the brakes being a little jumpy occasionally. Sometimes very bad, sometimes very little, and sometimes perfectly smooth. I pulled the wheels off and checked all of the rotors ( front and back ), an...

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ON CERTAIN PICKUP TRUCKS EQUIPPED WITH AN 8.1L V8 ENGINE, THE CRANKSHAFT POSITION CAN OPERATE INTERMITTENTLY OR FAIL COMPLETELY. IF THE SENSOR OPERATES INTERMITTENTLY, THE SES LIGHT MAY ILLUMINATE AND THE VEHICLE MAY RUN ROUGH. THE ENGINE MAY STALL, AND IF SO, MAY RE-START IMMEDIATELY OR AFTER ...

The retainer clip for the fuel rail pulse damper may fracture and allow the damper to come loose from the fuel rail. A fuel leak in the presence of an ignition source may result in a fire. Dealers will replace the engine fuel rail pulse damper free of charge. The recall began August 31, 2006. The GM recall number is 06080.

CERTAIN PICKUP TRUCKS HAVE GALVANIZED-BRAIDED-STEEL TAILGATE SUPPORT CABLES USED TO SUPPORT THE TAILGATE IN THE FULL OPEN (HORIZONTAL) POSITION. OVER TIME THESE CABLES CAN CORRODE AND FRACTURE WHEN LOADS ARE APPLIED TO THEM.

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good ,reliable vehicle

My sierra was a terrific truck until it spontaniously caught fire while the truck was off and parked in my drivway. If your blower motor stops or electrical things start becoming irratic gages...ect. Keep your truck out of your garage and get it checked. a.s.a.p.

Great truck over all, however mine's AC just stopped working out of the blue one day and even though all the fuses and relays are good the unit is still not getting any power

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