The wife and I went for a drive today, the weather was just gorgeous, and I was the passenger. So I started to test some things. When I have the defrosters on it sounds like a door is trying to close!!! And when the AC. is on I hear the same noise, could the AC clutch be defective?? Does any body out there have a thought on this? I haven't started to diagnose this trouble yet. With the AC on I can hear the compressor coming on and going off. It will finally stay engaged, could this be from lack of use??? Is there a relay for the AC compressor? Lawrence R Noska lnoska@xxxxxxxxxxxx Hauser, ID 83854