996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Some knocking noise

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Old Oct 4, 2024 | 09:05 AM
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Some knocking noise

Hello,

I was listening to my 996 Turbo Engine and heard like a knocking noise, don't know if its a pulley or something else. Anyone experience something similar? video attached.

Any idea of a potential issue or if its just normal are welcome
 
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File Type: mov
Noise 1.mov (5.99 MB, 40 views)
Old Oct 4, 2024 | 10:35 AM
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Arielao is infamous around these parts
Can it be tension on the time chains? the sounds only goes in idle.
 
Old Oct 21, 2024 | 07:26 AM
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I also want to know the answer.
Spoiler
 

 

Last edited by LeviGray; Oct 26, 2024 at 12:32 AM.
Old Mar 5, 2025 | 06:26 AM
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@Arielao
Did you resolve this in the end? What was it?
 
Old Mar 30, 2025 | 11:41 PM
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Rod ?
 
Old Aug 2, 2025 | 08:06 AM
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Noise

Have you tried pressing the sport button to make it go away? I have a manual, but the whole engine gets quieter & smoother when you press the sport button is engaged when at a stop
 
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