20 Most Recent 2003 GMC Sierra 2500HD - Page 4 Questions & Answers

Ther is a chance the rotors are one piece with the hub, requiring pilling off front beargs.

underneath intake a rear of engine close to drivers side hard but can be done

Its not the computer system this is a faulty stepper motor in the gauge cluster very common issue, unfortunately you need to replace the motor.

bank one sensor one oxygen sensor will be the sensor closest to cylinder #1. I believe your truck will have a total of 4 O2 sensors

there is a lock clip on wires you have to use small screwdriver to push clip lock in or out while pulling on clip

GM has had a issue with the clusters in the 2003-2005 trucks. The cluster will be replaced for free for your truck if it has less then 70k miles. I would take it to your local dealer and tell them that the voltage gauge sticks at times. They should order one for you, takes 1-2 days and replace it for you at no charge. If this does not fix the problem, you will have a new cluster at no charge.Unless the battery light comes on, the alternator should be good. This is a copy of the GM bulletin.

#07187C: Special Coverage Adjustment - Instrument Panel Cluster Gauge Needle Function - (Mar 20, 2009)

This special coverage covers the condition described above for a period of 7 years or 70,000 miles (110,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership.

Dealers are to replace the instrument panel cluster after the condition has been verified. The repairs will be made at no charge to the customer.

For verified failures between 70,001 miles (110,001 km) and 80,000 miles (130,000 km) on U.S. vehicles, dealers are to provide the customer with an instrument panel cluster (IPC) only. Any additional costs, including labor to replace the instrument panel cluster, will be the responsibility of the customer. Dealers are responsible for the return of the customer's IPC back to the Electronic Service Center.

For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after September 28, 2007 for 2003-2004 model year vehicles, and March 23, 2009 for 2005 model year vehicles, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to September 28, 2007 for 2003-2004 model year vehicles, or March 23, 2009 for 2005 model year vehicles, must be submitted to the Service Contract provider.

Involved are all 2003 and 2004 model year and certain U.S. 2005 Cadillac Escalade, Escalade ESV, and Escalade EXT; Chevrolet Avalanche, Silverado, Suburban, and Tahoe; and GMC Sierra, Yukon, and Yukon XL vehicles built within the following VIN breakpoints: 51100014-51247028 / 5E100002-5E223209 / 5F800001-5F882297 / 5Z100003-5Z224691

Good luck friend.

Check alternator to see if charging. Replace if necessary.Check battery, may have broken plates and not holding charge. Replace if necessary.

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There is help available at Autozone.com for free when you register your vehicle on the site. At the bottom of the homepage there are topics and after you chose some, second click into the category and you will find Wiring and Fusebox diagrams showing exactly what you need.Now you can also look at the covers on the Powerboxes which often identify the Relay layout, some are written under the cover you are removing.Please rate my info.

should be on the drivers side firewall or fender tower and is also the autoshutoff relay for the ignition..