Torque Converter Question

[tech701]

Is'nt there a way that a manual switch can be installed to lock the torque converter up in my 4r100. Is this bad for the tranny?

[twildman]

Originally Posted by tech701

Is'nt there a way that a manual switch can be installed to lock the torque converter up in my 4r100. Is this bad for the tranny?

Yes, you can put a lockup switch on it, and no its not bad as long as you don't leave it locked at too low of a speed. All you have to do is locate the plug on the passenger side of the tranny, get into the wire loom and find the purple wire with a yellow trace, and tap into it, then run that wire up into the cab and put it on a switch and then run a wire to ground so that when you flip the switch it will ground the signal to the t/c and lock.

[strokin_early_99]

Pin 54 on the PCM is the same wire, purple(violet) w/ yellow, you are looking for.

[Motown Fire]

PIN 54??? where is that on the pcm???