Chevrolet Avalanche 2500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Chevrolet Avalanche 2500
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Chevrolet Avalanche 2500 ProblemsService 4WD Message May be Displayed
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.
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.
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
Chevrolet Avalanche 2500 QuestionsWandering at highway speeds, directional unstable (2 answers)
Hard to keep vehicle in it's lane, tends to wander all over road, first to one side then to other side after steering correction is made.
It dies out while on freeway and sometimes at stop signs
Put it in 4h to drive through some mud now I can't get it back into 2h. Have pushed the buttons both the 2h and auto, moving, in neutral, in drive everything... stuck in 4H and drives hard on the road.
Chevrolet Avalanche 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 tire and loading information label on the driver's side door frame may be inaccurate. A misprinted label could lead to overloading of the vehicle, which could possibly lead to tire failure and a crash. Owners will be provided with corrected labels and installation instructions. At customers' request, a dealer can install the label for them. The recall began March 31, 2006. The GM recall number is 05109.