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Noisy alternator

"M" Specific discussion
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Simon 3.2M
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Noisy alternator

Post by Simon 3.2M » Wed Aug 29, 2018 9:24 pm

I think I've got a noisy alternator in that it whines (I think) does anyone else have this problem or is it just a characteristic of the car?
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Beedub
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Noisy alternator

Post by Beedub » Wed Aug 29, 2018 10:20 pm

i cant hear any whine in mine apart from the blower.
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Mangozac
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Noisy alternator

Post by Mangozac » Thu Aug 30, 2018 4:58 am

I'm pretty sure that a noisy belt tensioner idler is just as likely, and it is very close to the alternator. A lot cheaper to replace also ;)
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