No. I hope no shop will try to squeeze $1000 out of you for these
minor bearing noises. Even a complete timing belt change including new
idler pulleys and water pump wouldn't cost more than $500-700 on a
Civic.

AC bearing does NOT rotate when the AC is on. So if you turn on the AC
and the noise goes away then you know. Alternators should last about
100-120 K miles without replacing the brushes or the bearings. I think
you got good service out of it.

Rockauto.com lists a Bosch remanufactured alternator at about $120+core
+shipping. Should be about $200 incl. labor if you have shop replace
it.

AC clutch bearing is replaced as a part of the entire clutch. My guess
is about $40-50 bucks + labor.



On Aug 17, 8:57*am, Vmusic <alex_that_would_be...@yahoo.com> wrote:
> Hi,
> *I have a 01 Civic Coupe with 138,000 miles. (Midwest in the U.S.)
>
> I started to get a whining noise from the engine about a month ago. As
> the engine idles and I press the gas the noise gets louder and/or the
> "whine" gets louder, stronger and a little higher pitched. As I let
> off the gas and the engine idles slower, the noise quiets down some to
> a 'soft whine'. *As long as the engine runs, the noise exists.
>
> The dealer said BOTH the alternator bearings.... and the......... A/C
> bearings are shot and both need replaced.
> Both the alternator and A/C are original equipment on the car.
>
> Does this seem to match the symptoms?
>
> Do alternator bearings go bad?
> Do A/C bearings go bad?
>
> Is a thousand bucks about the right cost to replace BOTH the
> alternator and A/C?
>
> Thanks!!
> Whining in Columbus