Question about 1989 Ford Ranger

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Transmission-overdrive not working properly

AT, 2.9V6, 4x4. I rebuilt the engine, changed trans fluid and strainer, added Lucas Trans fix. Now, check engine light blinks, trans seems to be shifting in and out of overdrive, and RPMs hit 4K. Any suggestions?

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  • jason May 11, 2010

    you should not have put the trans fix in , that in its self will ruin the trans bands

  • Anonymous Mar 23, 2014

    The strainer was changed out and new fluid put in. ran fine for about 1 week.

  • Anonymous Mar 31, 2014

    fluid was low added some.drove about 20 miles started jerking, rpms going up an down acts like is going to shift but doesnt. does this around 55. fluid seems to be fine.



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I put a did automatic trans in my 99 ford escort....all works well but won't shift into overdrive....any help would be appreciated....we tried a new neutral safety switch but it didn't solve the problem.

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Check the transmission fluid first .
overdrive allows the engine to run at lower RPM's , which increases the fuel
economy and also the transmission runs cooler

Posted on Dec 15, 2008


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