I have had a rough idle problem that has been driving me crazy. Ever since I got it. I am starting to think it is one of the motor mounts.

I have replaced the wires, plugs, cap, rotor, clean the throttle body, tried injector cleaner, just recently had a full 90k tune up. I tried disconnecting the spark plugs wires one at a time, they all effected the idle the same. I adjusted the idle, reset the ecu, and cleaned out the IAC valve. ECU has no codes either.

The idle is like very fast light vibrations, in most cases the steering wheel vibrates as well. The vibrations feel the exact same from the seat, as shifter vibration does, which makes me think even more it is a motor mount problem.

How can I test to see if the motor mounts are bad? Just eye balling them from the engine bay, they seam ok. With the engine running, it doesn't seam to move excessivly. Pulling on the throttle cable to rev it doesn't seam to make much of a difference movement wise.

With the engine cool, I can't push it and have it move. Any other way of testing?

 

ok.....

 

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