2005 a/c growl
 

Growling noise coming from something connected to the belt. Removed belt noise stops. Can't feel any slop in any of the pulleys. Replaced tensioner as the noise stps when I take a little tension of belt. Didn't help though. A/c kicking in makes it worse.

Any ideas how to trouble shot this. Or should I just replace the a/c clutch. @ $150


Thanks