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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 09-16-2005, 10:27 AM   #1 (permalink)
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Engine whining

My e36 is making a whining noise from the engine that amplifies when i press the accelerator... it almost sounds like a remote control car, that kind of electric spinning noise. Any ideas or suggestions, before i let the shop gouge me???
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Old 09-16-2005, 10:48 AM   #2 (permalink)
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Right off the bat im thinking alternator.. pop the hood and listen. If the alternator is indeed making noise it is likely on its way out..
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Old 09-16-2005, 12:26 PM   #3 (permalink)
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Can the E36's alternators be rebuilt ?
(if I understand correctly, usually, the bearing and brushes will be replaced as part of the rebuild process. Typically, this is much less expensive than buying a new alternator).
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Old 09-16-2005, 12:30 PM   #4 (permalink)
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Quote:
Originally Posted by coversion
My e36 is making a whining noise from the engine that amplifies when i press the accelerator... it almost sounds like a remote control car, that kind of electric spinning noise.
Take a long screw driver and use it like a stethescope. While the engine is running, carefully put one end of the screw driver on the alternator, and put the other end near your ear (with your fist as the buffer). If alternator is not the culprit, do the same with other components (like the belt tensioners).

good luck
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Old 09-16-2005, 02:26 PM   #5 (permalink)
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Thanks all
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Old 09-18-2005, 08:16 PM   #6 (permalink)
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whiring

My whiring noise comes from the power pump. as long as it keeps whiring i don't mind
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Old 09-18-2005, 11:21 PM   #7 (permalink)
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When I drive my car with aftermarket sterio system on and the A/C or one or the other, my car whines too. I am almost positive that this is my alternator, but it has been going on for like 6 months and nothing has happend yet? Any input? Thanks...
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Old 09-18-2005, 11:23 PM   #8 (permalink)
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Quote:
Originally Posted by pcy
Take a long screw driver and use it like a stethescope. While the engine is running, carefully put one end of the screw driver on the alternator, and put the other end near your ear (with your fist as the buffer). If alternator is not the culprit, do the same with other components (like the belt tensioners).

good luck

A wrench or something without the usual plastic end works very well too.

As for the problem... you must first know where the noise is coming from before you can diagnose a whinning noise... search around... listen... feel... you'll find it eventually... or atleast the general area...

Good Luck,

Les
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