Air Conditioning

[ames43]

I have an 03 Yukon Denali. My ac works great one minute then the next it's not working? Any ideas? I have the 6.0 engine and I have 71000 miles on it in great shape.

[hubbycap]

I have had the same problem. Could be the compressor clutch.

[cammiller]

Low Pressure cycling switch. Next time it is not working, tap the switch, located on the accumulator, lightly and see if it starts working.

[Silverado4x4]

I second the Low Pressure cycling switch, my 04 did the same thing so I took it to the dealer to have it checked and the service manager came out with a new one and changed it in the service lane, he just unhooked it uncrewed it and put the new one on. He said they had alot of these come back for this problem and that Chevy had gotten alot of bad ones from the manufacturer .