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buzzing engine noise

renpar61
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renpar61 Member

renpar61

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Posted (edited)

I have been haring a very distinct buzzing/ringing noise on my 06 C2S when on deceleration between 4300 and 4000 rpm, possibly coming from the engine.

To be more specific, if I accelerate and take the engine to let's say 5000 rpm, then release the pedal, when it hits 4300 rpm the buzzing starts and stops exactly after going below 4000 rpm.

I took it to the dealer for a test drive and we ruled out a few things (belts, AC parts, etc.) but didn't find the source. I haven't had the time to drop it off for an in-depth check yet.

Anyone ever experienced anything similar?

Edited by renpar61
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mxt_77 Member

mxt_77

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Posted

Not on the Porsche, but when I had an S2000, I heard people complain of clutch buzz. You might search an S2000 forum and see what their problem & resolution was. Maybe it's something similar.

Alternatively, it could just be a heat shield somewhere. I had that in one of my former cars as well.

Good luck.

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  • 2 years later...

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