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      07-20-2007, 03:27 AM   #4
CaptOz
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Drives: Porsche 911 Carrera S
Join Date: Oct 2006
Location: Sydney, Australia

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I was getting that "thump" noise too but then I realised it was my wife's head hitting the headrest when I was accelerating the dash when braking.

Hmmm…..in your case could it be the brake function (that holds you car still when on a hill) not activating/deactivating properly. Or maybe a suspension noise.

Cheers.