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alternator belts/whirring sound 200 89

posted by  someone claiming to be vytas on  Thu Dec 14 07:08 CST 2000 [RELATED]

My mom's 245 had some noisy belts, so I changed the p/s and compressor belts. Turns out it's the alternator/water pump belts, which are of course a bigger pain to change. So as a temporary measure, I sprayed some STP "belt dressing " on them and tightened them a bit. Now there's this high pitched whirring sound coming from around there, gets louder with revs, and loosening the belts doesn't seem to have much effect. The alternator is "brand new"/ remanufactured Volvo part only a few months old.

Is it possibly just the belt dressing, until it wears off a bit? Does a problem alternator make noise like this (like I messed up the bushings or something)? I don't get it.





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