Possible bad tire or balance, motor mount, trans mount. Do you feel it in steering wheel? Does it shake under power, at coast? Check front end components. Hub bearing, loose lugs. Its hard to determine these symptoms reading about them, if I was driving it I could be exact but I hope this gave you some direction, start with the basics of elimination and proceed.
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Friday, January 7th, 2011 AT 4:14 AM