Troubleshooting Fordomatic transmission?

Q: I have a newly restored 1964 Mercury Mont Clair Marauder and need to know how to troubleshoot the Fordomatic tranny. All advice would be greatly appreciated. Thanks. Tranny shifts into every gear but drive. I would buy a manual but the only one that I can find is $65.00 and with only the one problem it doesn't seem to make any sense. Vacuum diaphragm and lines are okay.

A: It would be nice to know what the problem is that you have with the transmission. Troubleshooting this trans- or any other-depends on what the problem is. Is it a engagement problem, shifting problem, slippage? It begins with an understanding of basic trans operation, powerflow and controls. I suggest getting a shop manual for the vehicle. You can probably find one online or at a swap meet. Add-on to your update: If I remember correctly, this is the dual-range 3 spd trans. In one Drive range the trans shifts 1-2-3. In the other Drive range, it starts in 2nd and shifts to 3rd only. Second gear start was used for take off in snow, etc. Low was just low. Make sure you try both ranges of Drive. Check if reverse is ok. In 3rd gear the high clutch is applied. Same clutch is also on in reverse with the low-reverse band to get reverse. If reverse is ok, then make sure the kick-down rod is adjusted correctly or not stuck partially down. From there, no 3rd gear would be governor, accumulator or 2-3 shift valve.

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