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Knocking noise from rear


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I have a 2002 Carrera 4 Cab.. Tiptronic

All is well and I love the car, performance is stunning as is the handling...

I do have a small problem though, when i accelerate hard in any gear i get a loud clunk from the rear

somewhere in the tunnel, I can feel it as well, like something hitting the body from underneath.

If i pull away or accelarate gently, and feed the power in i dont get it.

Would I be right in assuming I have an engine mount, or maybe a transmission mount about to fail or is this a normal sound?

Any help and advice appreciated. I have my own bodyshop so I have access to a ramp and tools so if anybody

can point me in the right direction Ill have a look.. otherwise its off to find a good Indy near Exeter

regards

Gary

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