mwritter

my ac has died - started buzzing sound, no blower. i replaced the blower motor, still buzzing. replaced the relay behind the glove box that was buzzing, still buzzing. compressor kicks on, but no air-i think there might be a short in the fan switch, lights flickerwhen switch is off-please help!

2000CAYukon

I already replied to the email you sent me; however, you left off the part where the lights flicker when the switch is off. If that is the case, I suspect your a/c controller is probably bad.

Looking at an electrical diagram for my 90 (should be close to what you have), in the off position, if the lights flicker, the switch is probably bad.

Does this happen on all the speeds? Do you have manual or automatic climate control?

//2000CAYukon