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I'm not sure what "shaft" you are referring to as having a vacum leak. Clarify that and I'll do my best to diagnose it.

X2 on getting the more expensive rebuild kit.


-Scerb

the shaft i'm talking about is the the throtal link basicly attached to the butterfly valve , iwas told by toyota that the rubber O-ring seal is gone causing a vacume leak (this is from talking to one of the techs)