loud vibration on 2008 Honda Civic

When I first start my car their is a loud vibrating noise under the hood, sounds like an part of the exhaust, maybe a heat sheild or something. It goes away after driving for a while and every thing heats up, any ideas ?

by in Ennis, TX on May 02, 2011
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2 answers 2 comments
ANSWER by , May 02, 2011
Its hard to speculate what a noise could be without being able to hear the noise first hand. It could quite possibly be a cracked or warped exhaust manifold that indeed as it warms up could cause the noise to go away. Best to get it checked out.
ANSWER by , May 09, 2012
I HAVE THE EXACT SAME PROBLEM!!!! Have you had any luck discovering the culprit???
COMMENT by , May 09, 2012
Yes it was the motor mount on the passenger side. I replaced it myself.
COMMENT by , September 22, 2012
is it costly to change the motor mount.......is it gear mount or the engine mount.....