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post #1 of (permalink) Old 12th February 2008 Thread Starter
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Hi folks and apologies if this has been covered before but my search found nothing relevant.
I have a new Scenic 1.9dci. It produces a high pitch tone for a minute or two after the engine has been turned off. This is a single frequency, and constant in pitch, no air noises and the fan is not running. A bit like the whine from a static inverter. The whine is acoustic and comes from under the bonnet/hood. If there is a lubricating or fuel pump running for some time after stopping the engine maybe that is what it is although the tone sounds too pure for that and is constant in pitch until it stops. When it stops there is a clunk which I assume is a relay releasing. There is no change in the frequency at all, it just stops after a few minutes. Any suggestions foks................JR

Last edited by JohnRoss; 19th February 2008 at 12:14 PM.
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