Question about 1989 Ford Mustang

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Wont shift to over drive

1989 mustang with a 2300 and o.d tranny will not shift into OD we have swaped the tranny for one we know works. the wires are diffrent #1 has 2 wire plug #2 has a 3 wire puug can I make them swap?

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  • Master
  • 4,669 Answers

The reason it won't shift is because that plug isn't plugged in. It goes to the overdrive solenoid and the lock-up converter solenoid. I can likely tell you how to adapt it to make it work. What year is the transmission and what did it come out of? I know they are both A4LD transmissions but I can remember what year Ford changed the A4LD from the two wire connector to the three wire.

Posted on May 23, 2009

  • Clint Smock
    Clint Smock May 23, 2009

    The reason it won't shift is because that plug isn't plugged in. It goes to the overdrive solenoid and the lock-up converter solenoid. I can likely tell you how to adapt it to make it work. What year is the transmission and what did it come out of? I know they are both A4LD transmissions but I can remember what year Ford changed the A4LD from the two wire connector to the three wire.

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