Join Date: Dec 1999
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Re: Alternator whine
if its not a bearing noise, and actually a whine, like a turbo spooling up, then usually ive heard that on NEW alternators, and on alternators trying to charge dead or dying batteries.
if its a bearing type whine , one of the bushings/bearings in the alt has gone south, and itll eventually stop charging.
maybe its just unhappy? have you talked nicely to your alternator lately?
my wife exhibits those symptoms on occasion