2004 GMC Sierra 3500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 GMC Sierra 3500
2004 GMC Sierra 3500 Problems
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
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).
Units with 4 wheel disk brakes may develop at situation where the park brake does not hold as it should. Our technicians tell us this can be caused by worn park brake shoes located inside the drum section of the rear brake disks. The worn shoes should be replaced and properly adjusted to correct this issue.
2004 GMC Sierra 3500 Questions
When accelorating during takeoff rpm increase and motor sounds as though it should have shifted already.
My 2004 3500 Duramax loses power while pulling a 35 foot 5th wheel and speed drops to about 40 mph fuel consumtion goes up and engine runs real rough. I stopped and checked trailer brakes and then it ran OK. Also if I shut the engine off for a few minutes, it runs OK. It only deoes this once o...
Where is the heater control valve for the passenger side? What does it look like?
2004 GMC Sierra 3500 Recalls
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.