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Rattle or 'flutter' noise in front of driver

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YOUR RESEARCHRattle or 'flutter' noise in front of driver

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POST 1 / ORIGINAL POSTEROriginal post

I have a 2002 996 Coupe 6 speed and I'm hearing an odd 'fluttering' or rattling noise coming from in front of the driver that seems to be related to engine speed. The noise increases as engine speed increases regardless of wheel speed. The noise fades when engine speed is idle even if the car is moving at speed (pop into neutral and get off the gas at 70 MPH and the noise goes away). I'm guessing it may be vacuum related, and my first thought was the brake booster, but I'd like to get opinions from you experts before I throw any parts at it. Thanks

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