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Old 12-07-2003, 06:33 PM   #4
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Join Date: Dec 2003
Location: McHenry, Illinois
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Re: bad vibration 4G63 engine

Originally Posted by zyman
help, iv'e got bad engine vibration @ 1800 - 2500 RPM
the cam belt has been changed afew months ago.
i got so p******D off i dropped another engine in.
guess what? same problem. could it be transmission?
any ideas?.
zyman, not sure if you ever solved the vibration problem, but it does sounds like a shaft timing problem. In case you having already, suggest you also verify the following:

1. visual inspection of the motor mounts.
2. ensure the spark plug wires are correctly installed. I've seen instances where reversed plug wires caused a simliar vibration.
gmech is offline   Reply With Quote