2004 GMC Sierra 2500 HD Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 GMC Sierra 2500 HD
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2004 GMC Sierra 2500 HD 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 speedometer or other instrument panel gauge may begin to work erratically at times. Our technicians tell us that the instrument cluster must be sent to a repair facility to correct this fault. The warranty has been extended on some of these units to 7 years or 70,000 miles.
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).
2004 GMC Sierra 2500 HD QuestionsHow do I install the ignition cylinder lock CASE? (1 answer)
I drilled out my ignition cylinder too far, ( in the dark)....I now need to install the case, and the cylinder....do I need to pull the steering wheel?..if so, can u give me step by step instructions please?
Signed...using power tools without light..:(
u turn on the vehicle put it in drive, about a mile into driving it starts to lose power and u have to slowly release gas peddle until it catches speed, but as soon as u try to push in gas alittle more, speed goes down and starts to air pocket and seems like it is choking. i was told it could be ...
2004 GMC Sierra 2500 HD 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.