Quote:
Originally Posted by djdnz
Yup mine chirps, only with the AC on. The Subaru techs "couldn't hear it". Anyone get any resolution with this one?
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It's probably the belt slipping on the pulley when the A/C engages, you could try tightening the belt but then you risk putting undue stress on your pulleys and having to replace them prematurely or worst case actually messing up your seals on the A/C pump and having to buy a new unit.
The pulleys are much more resilient than I just made it sound but be aware that's the balancing act when you install belts. I haven't done this on my car although I can hear the chirp, this worked for my truck which had a similar noise when the A/C was turned on. You could also try some "belt dressing" but I'm not a fan of it.