997 C4S - High-pitched chirping ??

[skmark]

Hi all,

I've had my MY07 C4S for about 2 months and I'm loving it. Desperately trying to avoid new owner paranoia but I can't help but notice a high-pitched chirping from the rear when I have a window down .

It doesn't happen all the time, but it's very noticable when entering a multi storey car park (all the walls for the sound to bounce off I suppose). It seems to happen most when the engine isn't under acceleration ie foot off the gas approaching a junction etc.

Any ideas what it might be......fan belt etc. ?? The car is running as sweet as can be so I'm not too worried, just don't want to ignore it.

Thanks

Mark

[anonymous-user]

Budgie trapped in the engine bay? Sounds like a slipping fan belt from your description.

[river_rat]

I had this on my 996, never did work out what it was.

Always thought it sounded like a pump (fuel pump) not quite functioning properly?

[Blue62]

does the car have a duck tail?

[skmark]

Blue62 said:

does the car have a duck tail?

.......wouldn't it be 'quacking' then ??

[STiG911]

I notice this on my 997s but only when the engine is cold. I've assumed (!) that it's probably just a combination of the auxiliary drive belt and tensioners until warmed up when the noise stops. I've had a similar thing on other cars, and have sprayed a light touch of WD40 on to stop it, but I'm not about to do that on a Porsche!