Question about 1990 Mazda RX-7

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Have a 1990 Mazda RX7 vert w/automatic tranny. The hold little is flashing always and won't go into overdrive. I press the hold button but nothing happens. It never has. When it wasn't on, I could engage it with the button. Everytime I turn off the car and start it back it; the hold is off but when the car goes from 2nd to 3rd; the hold lights begins to flash and won't go off. I thought I had a battery problem because my battery was low. Put new one in and nothing. Could I please get some help. Thanks.

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  • waynefarmer8 Oct 14, 2010

    Thanks. Are you saying that there is not a quick fix right now until I can save to purchase a new tranny!! Another question? Is is cheaper to convert to a manual tranny?? Just asking.

  • waynefarmer8 Oct 14, 2010

    I am happy with the answer. I know know what has to be done and where to go next. I just didn't want to through good money to the bad. Now I have the answer.


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The flashing signals just that the solenoid for the command of the overdrive is faulty and the TCM can't control it . On a car of this age that is something to be expected.
Take your car to a repair shop and get a full service and inspection on the tranny - that is the first fault from a long line of future faults. And you should start saving for a full refurbishment of the tranny, you will need a lot of money in the near future.

Posted on Oct 14, 2010

  • Azrael SRL Oct 14, 2010

    Actually the fix is quite quick, it's a 4 hour job replacing the solenoid. The problem is in the fact that this fault is an wear related one, more will follow and those will be costly. Getting a new tranny now will be cheaper in the end.
    Yes, it will be cheaper - for start a manual tranny will cost a lot less. But you will lose some (not much, but you will feel it) of these savings for the modifications necessary to install it. But you will recoup those costs in fuel savings.


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