I got the alternator replaced, a second time because the first one was faulty, when I got the car back it was squaking. I assumed it was because he had to take of the serpentine belt and when he put it back on it must have done something... It isn't loose and it isn't slipping. I put belt conditioner on it but it made it worse. Can I fix this on my own, is it one of the pulleys?
My car has 136000 miles.
My car has an automatic transmission.
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