If the motor mounts look badly cracked and misshapen, also if you place a jack under the sump using a piece of wood to protect the sump and apply a little pressure. You may see any unwanted movement in the mount, they should hold the engine firm, also just check that the base idle is not to low, low idle speed will cause engine vibration as well.
Mark (mhpautos)
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Tuesday, December 7th, 2010 AT 8:41 AM