2003 GMC Sierra 1500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 GMC Sierra 1500
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
2003 GMC Sierra 1500 ProblemsABS Light Due to Poor Electrical Ground Under the Battery Tray
A poor electrical ground under the battery tray may cause the ABS warning light to illuminate. Our technicians tell us that cleaning and properly securing this ground and also the main ABS ground on the frame rail below the drivers door may be necessary.
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.
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.
2003 GMC Sierra 1500 QuestionsI have a 2003 gmc sierra 5.3. I seem to have a lot less power when i step on the gas and the engine light flashes. Any ideas? (2 answers)
Truck has 215k miles on it. Im thinking its misfiring? Maybe a coil pack? Help me out please
After Driving to store truck wouldn't restart After some testing found alternator failed so replace. Started find
drove few miles again wouldn't start. Tried jumping- check starter & battery
Disconnected power to Alternator after 10 min. reconnected truck starts fine WHY???
2003 GMC Sierra 1500 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.