All of a sudden the A/C compressor in my 99 Silverado 4x4 (5.3L) doesn't seem to cut on at all anymore. The blower works fine and up until a few days ago the air coming out of the vents was been nice and cold. However, now nothing happens under the hood when I press the button to activate the A/C.
I checked the fuse next to the relay and it's fine. Is there a chance the problem is something simple like the dashboard control module itself? I had to change out the transfer case switch module about 5 months ago.
Thanks for any help.
Casey