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60k miles on an 05 Passat wagon, it will rev at standstill but stutters/hesitates under load or quick acceleration. Has gotten progressively worse over the last couple days to where its even noticeable at cruising speed. No codes and I'm not running biodiesal. My mechanic did a quick drive and look see and didn't think its tranny related but didn't have the time to really get into it.
Also, a couple months ago a there was some rodent damage that involved the turbo vacuum lines. Any ideas?
Thank you!
J
 

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Because you mentioned the rodent damage, this is highly suspect. It's possible there is still a broken vacuum line somewhere.

Stuttering or bucking also sounds like a boost leak or vacuum line problem. There's a rubber air intake hose on the metal piping that goes from the left to right side of the car. It tends to rub on one of the ground wires and rub through. It could also be a loose quick connect connector that came loose. See this article for more details: http://www.myturbodiesel.com/1000q/multi/low-power-fix-TDI.htm
 
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