I have a 2001 Ram 2500 with just a little under 320,000 miles. When I bought the pickup last year I drove it home and it started doing the rapid torque converter cycling. When I got home I cleaned all the battery terminals. No help. I zip tied the ground wire to the frame of the alternator and it cured it. Then I was getting random dead pedals for about five seconds and I finally just got around to doing the ground relocation on the drivers side of the engine. I left the charge wire to the PDC because I’m not sure how to delete that (if anyone could give me input on that too that would be great). Now that I did the ground relocation I have intermittent dead pedals and torque converter surge again, as well as kicking out of overdrive. I just had the transmission rebuilt about a thousand miles ago too. Any input is greatly appreciated. Thanks!

7 hours ago, Dynamic said:

I really don't see any converter cycling in that video. I'm trying to make heads or tails of it, though to be honest. It looks like you take off from a stop, and at the 1-2 shift, it shifts, but then the tach jumps UP a few hundred rpm, and then back down, then back up a couple of times before continuing to rev up toward 3K. If I had to guess, based on this video, I'd say it was a 1-2-1-2 shuttle shift going on. What governor pressure solenoid is in the transmission? It also seems like a LOT of rpm going on for how fast you're accelerating. Where is your TV cable set? At what rpm is your WOT 1-2 shift point?

I will warm it up tonight and check the 1-2 shift point. I want to say it’s around 3,000 RPM. I installed a suncoast governor pressure solenoid and block in way back when, I’m not sure if the transmission shop reinstalled it or not. I haven’t been inside of it since I got it back from them five months ago. I also installed a new “high pressure” transducer, which I’m not sure if they reused, at the same time as the governor pressure solenoid. 

Trans shifts from 1-2 at around 2900 (I was spinning, it’s snowing pretty good here) governor pressure matches desired until it gets to around 85 psi and that’s all it’ll go

It appears as if all shifts at wot are completed at 3,000 RPM

Your TV cable is a little tight. Loosen it until WOT shifts occur at 2800 rpm and see if that changes anything (besides the shift point).

Alright, it seems as if the issue is fixed. I took it back to my transmission shop and they replaced the speed sensor (again) and the “external transmission harness” (from what I gathered he meant the speed sensor wiring harness). I will look in the future and report back which harness they replaced. Thank you guys for your support on this.