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From: R.E.Pasco on 16 Apr 2007 00:01
Unless you've definitely pinpointed the source of the sound, have you
checked that your windows are all fully closed? I thought I had a problem in
my '99 Camry until I exercised the windows full "up." They all looked closed
but one of them was the source of the whistling sound. Ditto in my 2006
Tacoma. Good luck.


"Pszemol" <Pszemol(a)PolBox.com> wrote in message
news:eccutk.1v4.1(a)poczta.onet.pl...
> "vicky11" <vkres2(a)yahoo.com> wrote in message
> news:05addb3f16c347fa4733adc8d841daed(a)localhost.talkaboutautos.com...
>> I just observed couple days back that my A/C makes a little Whistle sound
>> when i put on Maximum. It works very good. Why is that making little
>> noise..? is that some thing that i need to fix before it will run into
>> any
>> other problem.
>
> Does it do this sound when you have A/C off, but the blower
> set to maximum ? In other words - try to eliminate problem
> with a blower motor or something like a leaf/leaves stuck in
> the vents making this whistle sound... not related to A/C.
>
> If it does the sound only when the A/C is "on" then open the hood while
> the engine is running with A/C on and
> try to locate the source of the sound under the hood...
>
> But I bet it is something related with the blower motor...
> A/C compressor does not run faster when you set it to
> maximum - it just makes the blower to circulate more air.
> Speed of the compressor is related to the rpms of the
> engine, not to the setting of the electric blower motor...


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