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Discussion Starter #1
First of all, I have a 99' 4R70W Mustang.

I just J modded my valve body and the car will NOT shift into anything but drive.

When I shift it to reverse or neutral the car goes into drive. Also, it will not shift into 1 or 2 at all.

I did the mild J-mod. I just drilled the sperator plate. I did not touch the 1-2 accumulator or 2-3 accumulator.

The O/D light is blinking on and off also.
 

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I'm no trans expert, but you must make sure you reconnected all the solenoids inside the trans. That's probably why the O/D light is blinking. Also, when you put the valve body back on you had to make sure to position the manual control valve in the right spot. I'll stop here and let someone else more knowledgeable chime in.
 

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Discussion Starter #4
I reconnected all the noids.

Manual control valve? Is that the fork like piece with the roller on the end? If so, yes, it was installed the same way it was removed.
 

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Discussion Starter #5
I didn't have the interlock connected to that piston thing on the valve body :mad:

Hopefully that was it. Im off to the parts store to get more fluid.
 

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This is why I started the shift kit for dummies as I am araid I will have something like this happen to me. Good luck and let us know what the fix is! mark
 
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