You didn't indicate what kind of transmission you have. If it is a standard it could be clutch chatter from a glazed clutch plate or a sticky clutch pressure plate that does not engage fully at first. There may also be problems with the flywheel portion either being contaminated, warped or imperfections in the surface.
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Mike Nancy and the fuzzies
Fulltiming since June 2004
Volvo 660 MH tow vehicle
2005 MS 38RL
2007 Saturn Ion "toad"
2010 Gold Wing "piggyback"
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