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Registered User
Join Date: Jan 2012
Location: Westerville, Ohio
Posts: 7
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993 engine noise at 3200 rpm
I have a loud high frequency tapping sound at 3200 to 4000 rpm. Seems to be coming from the driver side front cylinder bank. I used a stethoscope and can't find it anywhere else. It's so loud that it shocks you. It stills runs fine. Hot or cold, the sound is the same. Any ideas?
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