2004 GMC Sierra 2500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 GMC Sierra 2500
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
2004 GMC Sierra 2500 ProblemsHeating and AC Temperature and Air Delivery Mode Door Actuators May Fail
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.
The 4WD transfer case position sensor or the selector switch may fail causing the service 4WD message to be displayed.
2004 GMC Sierra 2500 Questionsmy abs, hand brake light, and service brake booster sensors are on what's wrong? (1 answer)
My truck feels like it is in constant struggle to run...as if I'm running on less HP and low brakes
won't go into 4x4 mode
I have a 2004 gmc sierra 6.0L v8, it went into limp mode ( stuck in 2nd gear ) it has 3 codes, 2 for solenoids in transmission and one for torque converter, garage phoned the tranny shop, they said all 3 codes means its electrical, most likey the ignition switch, i changed that and nothing. check...
2004 GMC Sierra 2500 RecallsFuel May Leak from Fuel Rail
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.
The second row center seat belt routing may make it difficult to position correctly on smaller passengers. If the seat belt rides up to fit around the abdomen, the risk of internal injury is increased in a crash. Dealers will cut the guide loop, remove a portion of the loop, and the remaining sides should be folded over and secured with a retainer. The recall began July 21, 2005. The GM recall number is 05037.