2004 Chevrolet Avalanche 1500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2004 Chevrolet Avalanche 1500

2004 Chevrolet Avalanche 1500 Problems

4WD Transfer Case Position Sensor/Selector Switch May Fail

The 4WD transfer case encoder motor position sensor or the selector switch may fail causing the service 4WD message to be displayed. Fault code(s) stored in the transfer case control module will be of assistance in determining the exact fault causing the message to be displayed.

Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail

One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.

Speedometer or Other Instrument Panel Gauge May Work Erratically

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.

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2004 Chevrolet Avalanche 1500 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.

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.

Hydraulic Brake Booster May Fail

On vehicles equipped with the Bosch hydraulic brake booster, the boost pressure accumulator may crack and break away from the hydro-boost assembly during normal operation. If this were to happen while the hood is open, fragments from the accumulator could injure people standing in the immediate area. The loss of fluid while driving would cause increased steering and braking effort and a crash could occur without warning. Dealers will test the hydro-boost assembly for function of the two-function valve. If the hydro-boost assembly fails the test, it will be replaced free of charge. The recall began March 23, 2005. The GM recall number is 05006.

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2004 Chevrolet Avalanche 1500 Reviews

I am a pilot car for the oversize loads and travel all over the country. I currently have 360,000 miles on my Avalanche and it is still in great shape. I have had trouble with the instrument cluster (speedometer not working). Have also had trouble with the heating/cooling functions. Other than that, it has held up well.
my husband loves this truck but i am the one who gets it serviced the electrical system sucks have and 21 sensors replaced and the tail light work when they want now struggling with electrical issues in the transfer case modual and dont even ask about the front ends under this vehicle found out after we bought it they were a problem have pretty much replaced everything shocls st...
I love this truck! I use it as a daily driver and for scuba to securely load all my dive gear in. just minor issues so for headlight burned out and multifunction switch (turn signal - wipers - cruise control) broke but was covered under warranty. I will buy another!

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