TC Lock-up mod 01 F250

[jsargente]

I am interested in doing this mod, and have no electronics/electrical knowledge and if someone could comment on the attached mod link. Not sure I am following the exactly how to incorporate.

Torque Convertor Lock-up mod

Any help would be greatly appreciated.

Thanks

[Jonathan734]

I did the mod and it turned out to be way easier than I thought, although I did a very basic version. Basically find the wire that controls the TC (the site will tell you), splice into it with another wire and run it into the cab to a dual pole switch from radioshack. Now take another wire and ground the switch with it. When you flip the switch you ground the wire which locks out the TC. I use it above 35mph, and unlock it whenever I decelerate. I am leary of using it for an exhaust brake. Hope this helps, like I said very basic but works.

[sawyer1]

This sounds good and id like to try it but why the need for the double throw am i missing something. thanks

[Jonathan734]

Hmm I dont even know what a double throw is, I must not have been clear enough. The switch I used was basically just an on/off switch with two different tabs to run a wire too. When you turned the swith on it grounded, when off it doesn't.

[luckydog]

That type of switch is called a "single pole double throw." In one position (off), the switch is open (nothing connected inside.) In the other position (on), the contacts are connected (closed). "Single Pole" means that you can only complete one circuit with the switch. "Double Throw" means that there are two positions that the switch can be in (on and off.)

[kefier2001]

Just make sure you turn the switch off before you stop. Run a light/led with your switch that lights up when you lock the TC and it will help to remind you that you flipped the switch and locked it up.

[luckydog]

It would be nice if we could design a circuit that would monitor engine rpm and cut off the TC lockup when the rpm dropped below about 1000 or so.

[dr8082]

Can someone explain the use of this mod, advantages? Does it save your TC, Tranny or does designed to provide immediate power to the wheels?