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· Registered
87 Posts
Discussion Starter · #1 ·
Went on a three week vacation. Knowing my battery would likely be shot due to the vampire nature of the aftermarket head unit, I disconnected the positive lead on my battery before leaving.
No dead battery, but now I have no A/C. Fan is running, controls are lit, just no cold air.
Can hear a "ERRRRR" "ERRRRR" under the hood when the AC button is engaged.


2011 2.4 LTZ, climate control

· Premium Member
2,412 Posts
Sounds like a mechanical problem under the hood.
Guess.....the AC compressor has seized due to lake of use and the belt is now slipping on the compressor pulley.[this would be very loud]
the belt tensioner has seized in a position that does not apply much tension to the belt and the belt is too loose to turn the AC compressor.

I suggest you access the AC pulley and try to turn it slightly with the appropriate wrench/socket. Maybe you can free it up. Check the belt tension while you are there.
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