2004 GMC Sierra Denali Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2004 GMC Sierra Denali

2004 GMC Sierra Denali Problems

"No start" Caused By Failed Fuel Pump

The fuel pump may fail causing the engine to stall and not restart.

Fuel Level Sensor Failure

It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.

Popping Noise From Muffler Heat Shield

The muffler heat shield may become loose on the muffler causing a rattle or popping noise. Our technicians tell us there is a kit available from GM to correct this problem.

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2004 GMC Sierra Denali Recalls

Fuel 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.

Recall 05V161000
ON CERTAIN PICKUP TRUCKS EQUIPPED WITH MANUAL TRANSMISSIONS AND BUILT WITH EITHER PBR PARKING BRAKE SYSTEMS OR TRW PARKING BRAKE SYSTEMS, THE PARKING BRAKE FRICTION LININGS MAY WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.
Rear Seat Belt for Smaller Passengers May Not Fit Correctly

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.

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2004 GMC Sierra Denali Reviews

The Auto Mode Air Conditioning system on the driver side is giving me some annoying problem. When I set the temperature, say 68 F and it start to blow cool A/C air and after some 10-15 minutes it change to very hot air. It will not change to cool breezy air even if you turn and change the temperature knob setting. I tried to turn it off first then turn it back on but still will not go back...

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