Help more TPS problems?????

[fire8033]

Hey Guys need some help with the TPS. I was having problems with lock-up and replaced the TPS. The truck ran great for about 2 weeks now it back to going in and out of lock-up. I tested the new TPS this morning and everything test fine. any ideas??????

Thanks in advance to anyone that can help.

1994 dodge 3500 dually 5. 9L cummins 3. 54 gears.

 

[Eric_77]

You are not going to like this. I had same problem with my 92. I went through 18 TPS in 30 months. Even the dealer was getting frustrated. We had a ritual going when it acted up I would come in, he would download the error, order new part, and replace it the next week. Well after a recorded error fault I had the battery die and replaced it; error codes were erased. With a bad TPS it should had thrown the error code out again it didn't. We found the problem finally at that time; it was the voltage going to TPS. The voltage is only like 1. 5-2 volts and is dropped from 12volts at the CPU so they replaced CPU and never had a problem again. This all started at about 12k and lasted to 35k so it was all under warranty.

In my opinon I would reset the error codes and find out if the TPS sends another error code right away if it doesn't then I bet you have a voltage problem also.

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Eric Kelcher
92 W250 stock 4spd/auto 3. 54
96 2500 extd SLT Diesel Dynanics fuel pump plate; auto with DD shift kit(?) Dun-Rite TC; 3. 54 posi; K&N airfliter; Boost, transmission temp, EGT guages waiting for nice day; 192K
13. 5k 33'utility trailer 19' Galaxie runabout

 

[n_fairchild]

I had the same problem and i changed the transmission temperature sensor, 18 bucks at napa. (I think it was only $22 at dealer). If i remember right it is a 7. 5k ohm resistor you can put in the temperature plug to test it. This will supposedly give the computer a 98 degree signal. hope this helps.
Nick