No rear AC

[quazee]

The rear AC went out a couple of days ago. Also, when the front AC is above 2 i get a pronounced humming sound. Any ideas?
When I first turn the AC on and am accelerating I get a loud squeeling sound for a couple of seconds then it stops. If I stop at a light it sometimes does it again, sometimes not. At least it still blows cold air though :thumbsup:

 

[tspain]

The noise is comming from your compressor. It'll will have to be replaced. Also, check your fan clutch, it's probably failed, causing the excessive high side pressures which caused the compressor to fail.

The humming noise is probably from trash in the blower motor fan. Pull it out and clean it and it should help the noise.

Your rear a/c being out is likely a stuck closed expansion valve on the rear evaporator.

 

[jey_]

The squealing could also be from a slipping/worn out belt on the compressor.

 

[CJR2]

My rear AC fan has been out for months, the fan control does nothing. Any ideas