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Old 07-17-2012, 07:05 PM   #2
thstone
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Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
Never heard of this but my first thought is to check the engine mount. If its never been replaced, then the engine could be moving slightly when revving and this might be sensed as some movement in the car.
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1999 996 C2 - sold - bought back - sold for more
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1979 911 SC
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