95 cummins 2wd 47rh
Tcc not locking have ran a pot mod from dnr and a lock up switch for years. Now I have 1st 2nd and 3rd but no lockup. Test light ran from orange/black wire on trans solenoid shows that computer isn't supplying a ground to lock up. But even with my lockup switch it won't work. I'm sorta stumped. I've heard the brake pedal switch can mess with lockup but not sure how to test it. Also wondering if I should run a 12v hot wire to the center wire on solenoid just to test tc and temporarily fix it. Any advice would be great.

 

I ran a 12v to center and a ground to orange and black on a toggle and still have no lockup. Solenoid bad? I left the overdrive wire alone because it is still engaging when it's supposed to. Any advice or tips? I have read all of the other threads that concern this and they don't say what to do if it doesn't work.

 

Replaced solenoid. No change. Just ordered Revmax torque converter. Seems to be the only thing that it could be. What do you all think of Revmax?

 

I'm stumped with this as well, and probably will be not much help and you've probably seen or followed this guide before. But this is how I did mine and its been problem free for 3 years. http://www.tstproducts.com/Torque%20...p%20Switch.pdf

 

Thanks, I've actually never seen that guide before. It would of been nice when I originally wired my lockup switch. Ran it for years along with the pot mod. Love to adjust the shift points. This is the only issue I've had. I am pretty sure my stock converter just decided to quit. I'll know for sure when I get my Revmax in.