Instrument Panel Cluster Malfunction
As you can see my 2004 GMC truck speedometer has malfunction. The dealer said it will cost between $400 and $600 dollars to replace. I look on the internet and found a special bulletin from GMC. I called GMC and they said it will only cost $120 for the labor to replace. The special bulletin will cover the part cost. I hope this can help you. Go to http://www.gm-trucks.com/forums/index.php?showtopic=70134
How Instrument Clusters Work & What to do When Gauges Go Bad.
MotorWeek's Pat Goss (RockAuto.com is a MotorWeek Sponsor) demonstrates how modern instrument clusters work and explains what can make gauges go bad. He shows replacement instrument clusters by Dorman (found under "Body-Interior" at RockAuto.com) that are relatively inexpensive and often better made than the original gauge cluster.
How To Disassemble A Chevrolet Gauge Cluster & Stepper Motor Removal
Video of me taking apart a Chevy Silverado instrument panel. This is also the procedure for stepper motor replacement if you have a guage that isn't working correctly. The disassembly process is the same for many GM vehicles.
How to change instrument cluster light bulbs (LED swap) (99 Silverado)
WATCH MY REMAKE OF THIS VIDEO. BETTER TUTORIAL AND MUCH SHORTER. it's titled "REMAKE VIDEO: LED Swap - Instrument Cluster GMT 800" can be found at: http://youtu.be/SwstcqK8WFg TO EVERYONE ASKING FOR LINKS. Please Read If your looking to purchase the bulbs and the needed twist locks Go on Ebay or Amazon or whatever you prefer! Search: 194 Twist lock (ebay seems to be the best place for the base) Search: 194 5 SMD LED blue (or color of your choice) If you have a bulb out in your gauge cluster this video will show you how to replace it. the bulbs are 194's with a twist lock base. the should apply to 1999-2002 Chevrolet Silverado's 2000-2006 Chevy Suburban and Tahoe's I ended up just swapping the stock ones out for LED's