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Need Help with Strange Vibration
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01-03-2018, 10:28 AM
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tommy583
98 Arctic silver 986
Join Date: Jul 2011
Location: Upstate, NY
Posts: 1,441
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1998 Porsche 986
If you notice the RPM isn't steady when the vibration happens, try cleaning the idle control valve. It is on the side of the throttle body. But as I reread your post it appears the RPM's were steady, so I will third the motor mount.
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