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When on the gas after slowing down or stopping I get a single thump or a thud feeling from under the  drivers seat or back of the car area...  gear changes are smooth I dint get any knocks or thumps then. Literally when I step on the gas in lower speeds... it’s as if it’s taking up slack in the drivetrain somewhere?? I also get like a whistle  at 40- 70 ish mph. Very high pitched. Not your typical whine noise... please help?

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If you have done 90k km or multiples of the the cardon shaft bearing need replacing before it costs you a whole shaft. Easy to check, get a small wreaking bar and move the shaft up and down, if you see cracks in the rubber around the bearing then replace it now!

 

 

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Check your flex disc first.  I have an '03 CTT and what my late mother called a "leadfoot".  I've replaced the cardan shaft/bearing assembly twice and recently thought it had gone again.  Turned out to be the flex disc which had been replaced both times, but failed with only a few thousand miles on it.

flex disc.jpg

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