I have been driving my 2004 Silverado for two years now and have had the following problems:
9,000 miles: Replaced leaking rack and pinion assembly. Fortunately, the old rack was replaced with a superceded part, which might not leak. 15,000 miles: Replaced driver-side manual window regulator. 21,000 miles: Replaced driver-side air conditioner temperature actuator. 30,000 miles: Started dealing with Intermediate Steering Shaft clunk. Somewhat relieved to find out that the front end isn't falling apart; dismayed to hear that I may be obliged to pay and pay to have this chronically-defective part serviced over and over again. If you're driving a GM product and you haven't yet experienced the dreaded "Clunking Noise Under Hood" which "Can Be Felt in the Steering Wheel", you probably will. The problem affects all of these models as well as many others:2002-2003 Cadillac Escalade, Escalade EXT
2003 Cadillac Escalade ESV 1999-2003 Chevrolet Silverado 2000-2003 Chevrolet Suburban, Tahoe 2002-2003 Chevrolet Avalanche 1999-2003 GMC Sierra 2000-2003 GMC Yukon, Yukon XL 2003 HUMMER H2 (Affected vehicles include both 2WD and 4WD)*** I copied and pasted the above information from the website below. The updated information from the service bulletin that I obtained on February
13, 2006 takes the dates for ALL of the models listed above and extends it through 2006. This indicates to me that GM has not produced a superceded part which will permanently correct the Intermediate Steering Shaft problem. I am going to check with the Chevrolet parts department today to see if a new part is available.Other than the discovery of the steering problem, my 30,000 mile "service" was a complete success.