2003 Chevrolet Avalanche 1500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Chevrolet Avalanche 1500
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2003 Chevrolet Avalanche 1500 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.
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
The spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.
2003 Chevrolet Avalanche 1500 QuestionsWhy is both T/C and ABS Indicator Lights coming b on and staying on all of the time (1 answer)
There is not really anything else to tell. Going by the owners manual , further damage may result if the remain on all of the time.
Cam sensor spark plugs wires coil crank sensor have all been changed. Just replaced the cats. And the p0306 is still coming up, what else could it be.?
Started and drove fine in the morning - no indication of weak battery - two hours later, completely dead - nothing electrical works - battery still seems charged. Any suggestions?
2003 Chevrolet Avalanche 1500 RecallsRear 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.
The hydro-boost housing relief valve bore may be out of specification. The seal may fracture as a result, which may reduce braking assist and slightly increase the steering effort while braking. Under certain conditions, more braking effort will be required to stop the vehicle. Dealers will replace the hydro-boost relief valve. The recall began June 18, 2004. The GM recall number is 04004.