A harmonic damper would not cause too much vibratins and when engine rpm is increased, the vibration should lessen as the engine smoothes out due to the centrifugal force.
Check the engine mount, note if it is sagging or broken resulting in the bracket touching the body. If it is bad, it would not absorb the vibration and the higher the engine rpm, the worse it can get.
When the gears are engaged and accelerating, torsional movement of the engine could release the contact resulting in no vibbrations being transmitted.
Does problem goes away or maybe intensifies when reversing?
Friday, January 28th, 2011 AT 8:05 PM