9.3 whirring sound

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Molesworth - 27 Aug 2006 02:04 GMT

Whenever I switch off the engine and remove the key,I can hear a
whirring or clockwork sound which goes on for quite a while afterwards.
The noise comes from the lower part of the centre console. Anyone know
what is making this sound?

Molesworth

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Colin Stamp - 27 Aug 2006 10:13 GMT

>Whenever I switch off the engine and remove the key,I can hear a
>whirring or clockwork sound which goes on for quite a while afterwards.
>The noise comes from the lower part of the centre console. Anyone know
>what is making this sound?
>
>Molesworth

Do you have the heater on recirc? For some reason it goes back to
fresh air when you turn the ignition off.
If you turn recirc on and off without the engine running, you should
hear the same noise.

Cheers,

Colin.

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Richard Sutherland-Smith - 27 Aug 2006 13:52 GMT

>>Whenever I switch off the engine and remove the key,I can hear a
>>whirring or clockwork sound which goes on for quite a while afterwards.
[quoted text clipped - 11 lines]
>
> Colin.

It's the cabin temp air sensor in the dash which has a fan in it to
suck air over a variable resistor. It runs for 20/30 seconds after
switching off. It gets noisy when the dust builds up inside it after a
few years.

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Richard and Mary Sutherland-Smith
19 Webb Road, Wanganui 4500
New Zealand

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