I have a 92 Integra GS with a replaced motor. When in neutral and engine
running, no vibration at all.
But when I stick the gear into D, then the car vibrates and when I stop at a
Any ideas why the car vibrates when in gear?
Motor mounts? If motor mount was the problem, wouldn't it vibrate all the
time, even in Neutral.
Rear transmission mount? Anyone know where this is located and is it easy
Thanx in advance for any advice.
No. When in neutral, the idle is elevated, and the engine's vibrations are
not as pronounced.
Costs about $100 each for each part. Not including the labor.
I'd just leave it. When the weather warms up, the vibration should be much
You have two (lower) engine mounts at either side (front and rear) of the
bottom of the engine where the bellhousing joins the block. You also have
two *upper* mounts. They attach the engine/transmission to the inner
A compression test or "cylinder balance" test will tell if one or more
cylinders is bad, which would cause a lumpy idle.
Your idle speed in D may be separately adjustable. You can raise it if
Motor mounts only damp minor vibrations in the process of transmitting
major vibrations to the body.
One symptom of a broken mount is a feeling of "wind up" when
accelerating, that is, a lag in response to the throttle.
Maybe it uses the hydraulic rear mount that is used in Hondas of that
vintage with automatic trannies. If that's what you have, the mount is
vacuum controlled (follow the vacuum line up to the controller valve,
probably on the top of the firewall.). Applying vacuum to the mount should
soften it and reduce the vibrations. The control valve is to apply vacuum
during idle in gear, and release the vacuum other times to firm up the
In my daughter's 93 Accord the vacuum operated valve on the mount is sticky
and doesn't always operate unless I nudge it with my fingers. You can try
the same on yours... or at least watch to see if the lever moves.
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