Question about 1998 Chevrolet Cavalier

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Computer brain is not functioning

Also I believe that because of that, that the transmission has a low-level internal vibration


Please rsvp.

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  • yadayada
    yadayada May 11, 2010

    If the computer (PCM) was not working the check engine light would be on and the car would not run, this sounds like a planetary gear vibration or pump vibration and is most likely mechanical and not electronic, have you pulled the trans pan to check for excess debris in the pan?

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Disconnecting the battery is what resets the computer on this model year. Try disconnecting the Pos battery cable for 15 minutes. If the problem presists after connecting the battery up again, you have a problem with Idle Air Control, EGR Valve, etc.

Posted on Dec 06, 2008

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