Rogan
US Army Tanker Vet
So I did the TPS pot mod as a test for some of my trans problems. One of the many problems was that the OD engaged way too early.
so I bought the 271-1714 potentiometer and wired it up. worked like a champ, and was selectable for OD engagement, as expected.. Maiden roadtrip: 55 miles. About 40 miles into the trip, 65mph (pot set for OD engagement 40mph, disengage at 30-ish), all of a sudden, It pops out of OD and my 4.10 run the rpms up to about 2700! wow!
I pulled over, checked everything. All looked fine. Re-fired the truck and continued on, and it worked fine the last 15 or so miles.
On the way back, about the same time length/distance, it did it again. This time, I just shifted to neutral (while still at speed), cycled the ignition, re-fired it, put it in D, and away I went, good as new..
...for about 5 minutes, then it did it again. Repeated process, and another few minutes, it did it again. This time, I just pulled over, disconnected the pot, and re-connected the TPS and finished the trip home.
No idea why it's doing this on extended runs. Short, in-town runs, it's fine.
This is on a '97 3500 DRW.
no codes when it occurs
so I bought the 271-1714 potentiometer and wired it up. worked like a champ, and was selectable for OD engagement, as expected.. Maiden roadtrip: 55 miles. About 40 miles into the trip, 65mph (pot set for OD engagement 40mph, disengage at 30-ish), all of a sudden, It pops out of OD and my 4.10 run the rpms up to about 2700! wow!
I pulled over, checked everything. All looked fine. Re-fired the truck and continued on, and it worked fine the last 15 or so miles.
On the way back, about the same time length/distance, it did it again. This time, I just shifted to neutral (while still at speed), cycled the ignition, re-fired it, put it in D, and away I went, good as new..
...for about 5 minutes, then it did it again. Repeated process, and another few minutes, it did it again. This time, I just pulled over, disconnected the pot, and re-connected the TPS and finished the trip home.
No idea why it's doing this on extended runs. Short, in-town runs, it's fine.
This is on a '97 3500 DRW.
no codes when it occurs
