2001 Impala: what whines in a certain speed range?

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Simon - 02 Sep 2005 19:30 GMT

2001 Impala base 46K miles.
Recently developed a kind of whining noise from the front. The whine can
only be heard in the speed range of about 20 - 30 mph. The noise stays even
after foot gets off the gas pedal until the speed drops below ~20mph. What's
wrong? Need a big fix?
Thanks!

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Shep - 02 Sep 2005 20:36 GMT

Will it do it in neutral at the same engine speed, if not look at the tires
see if they are cupped or choppy, if in nuetral, could be any thing the
serpentine belt turns or even the trans. Internet diagnosis is impossible
for most noises.

> 2001 Impala base 46K miles.
> Recently developed a kind of whining noise from the front. The whine can
[quoted text clipped - 3 lines]
> What's wrong? Need a big fix?
> Thanks!

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tim bur - 03 Sep 2005 16:17 GMT

wheel barings, trans , tires cupped, acc. drive belt

> 2001 Impala base 46K miles.
> Recently developed a kind of whining noise from the front. The whine can
> only be heard in the speed range of about 20 - 30 mph. The noise stays even
> after foot gets off the gas pedal until the speed drops below ~20mph. What's
> wrong? Need a big fix?
> Thanks!

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Simon - 04 Sep 2005 06:03 GMT

I tried switching gear to neutral when whining, most of times the noise is
still there until the car slows down below 20mph.

> wheel barings, trans , tires cupped, acc. drive belt
>
[quoted text clipped - 6 lines]
>> wrong? Need a big fix?
>> Thanks!

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tim bur - 05 Sep 2005 16:42 GMT

sound like a wheel bearing take it in

> I tried switching gear to neutral when whining, most of times the noise is
> still there until the car slows down below 20mph.
[quoted text clipped - 9 lines]
> >> wrong? Need a big fix?
> >> Thanks!

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NapalmHeart - 05 Sep 2005 07:17 GMT

> 2001 Impala base 46K miles.
> Recently developed a kind of whining noise from the front. The whine can
[quoted text clipped - 3 lines]
> What's wrong? Need a big fix?
> Thanks!

The alternator might be going bad. Worth checking, anyway. The alternator
in my '96 Saturn got pretty noisy right before it died.

Ken

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Walter - 05 Sep 2005 08:09 GMT

> The alternator might be going bad. Worth checking, anyway. The alternator
> in my '96 Saturn got pretty noisy right before it died.

Seems like if it were the alternator, it would make noise all the time
... just louder or higher pitched at higher RPM.

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