a/c problems

Just bought an '04 with the 4.8 with 155,000 on it. Truck looks and runs great but I noticed that when I run the A/C, there is an intermittent noise coming from the rear of the truck. It sounds like a pressure relief valve is releasing pressure in short bursts...A/C is blowing cold but I am...

I have a '99 Tahoe and the A/C compressor is not engaging. I have been reading the threads here and have done the following: 1. Checked the low pressure input and it reads about 30 psi 2. Jumped the wires connected to the low pressure switch and the A/C engages but the air is still hot...

Until today, a/c ran nice and cold. All of a sudden, front a/c stopped blowing any cool air. But the kicker is that the rear a/c still blows very cold air. any thoughts on the source of the issue? I'm hoping it's a simple fix. Keeping my fingers crossed.

I've had my '08 Tahoe a little over a year now and continue to have this problem. The service department at my local Chevy House at first gave me a print out of the problem, but told me there was no fix for it. The noise was a normal operating sound. But after a year of dealing with this LOUD...