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AM993 AM993 is offline
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Join Date: Sep 2006
Location: Toronto, Canada
Posts: 34
Fan hub bearing maybe? When it goes bad, its sounds like a drum beat coming from the center of the engine, above the fan. The noise comes from the fan hitting its housing. You may want to check the fan housing (especially at the 6 o'clock position) for wear mark.
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'10 997.2 C2 Meteor Gray

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Old 04-16-2008, 11:12 AM
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