I had the same thing happen to my 03 Tahoe. Called my friend that is the Service Manager at a Chevy dealer I use to work at.
He said they see this problem a lot and to replace the comp. I bought one off Ebay for less than 150 bucks that I must say it looks to be better that the delco remanufactured sold at the dealer. My a/c is now cooling great, the noise is gone and the belt tensioner is not jumping anymore.
Got any questions, feel free to ask. I worked at GM dealers for 25 years. I have worked as a line tech, shop foreman, service manager and service advisor.
Saturday, July 11th, 2009 AT 9:14 PM