2003 Chevrolet Silverado 2500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Chevrolet Silverado 2500
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2003 Chevrolet Silverado 2500 ProblemsImproper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator
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.
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 Silverado 2500 QuestionsWhat step to take next? (1 answer)
My dealership mechanic replaced the throttle body and switch.
Currently the engine reduces power to about 40 mph lasts about a day then engine light and problem goes away, but then comes back every 2 or 3 days. How do i fix this problem for good. Throttlebody not dirty, no floor mat issues. Thx
working on 2003 with 220000 miles on it and it is getting fuel in the oil it has a 6.6 Duramax. Could it be the injectors and the sleaves?
Could this be a bad injector,sleave,or both?
2003 Chevrolet Silverado 2500 RecallsRecall 05V161000
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.