My tranny acts up around 45 mph and at 60 mph it drops back and forth about 200 rpms.I think it is the TPS, but any other information on this will help.I have seen quite a few posts like this one and if anyone has gotten it fixed please let me know.

 

try cleaning your battery cables first then there are 2 gray connectors on the passenger side coming off the alternator that you should check the connections and clean the contacts and put dielectric grease in or eliminate them all together by cutting them off and soldering and heat shrink the splice. i have the same problem with my trans. at 35mph with the torque converter locking and unlocking and i did this and it helped and for the most part went away. try this first you don't want to have to replace a TPS if you don't have to they are $504.00 in a lot of cases it will fix the problem bad grounds and electrical noise can do weird things. also when you have the batteries disconnected you should reset your apps (TPS) do this by
1. set parking break
2. disconnect batts
3. put key in ignition and turning it on and leave it on for at least 30min
4. after 30 or more min turn key off and reconnect batts
5. put key in and turn to on position do not start
6. push the accelerator down SLOWLEY all the way to the floor and release SLOWLEY
7. turn key off
8. release the parking break

 

also check for any codes by turning key back and for 3 times form ON to ACC ending in the ON position and look at odometer for codes it will say DONE when it is finished reading out codes if you have codes post them and i or someone will surely tell you what the are

 

What year is your truck? Update your signature so we know what your talking about.

 

I have a 1995 Dodge 2500 Diesel 4x4.

 

It could be the TPS but it is easy to clean the battery terminals first. (It may be electrical noise).

 

Do a search on cleaning and adjusting TPS. It sounds like TPS is dirty. There is a big write up on this site floating around that will show you how to clean it.

Make sure you check out the voltages of the tps while it's still installed on the truck. All you need is a meter. There is a write up on dodgeram.org on how to do it.

The tps can be cleaned even though it was not designed to be cleaned. Some say it works, some say it don't, some say it only works for a while then needs to be recleaned. You decide. I cleaned mine a year ago and it is fine.

Replacement is around $150. KD

 

where can you get a tps for $150 there $504.00 just for the part

 

I just bought a new TPS for it and my was through the dealer for $155.

 

For the 94 they are about 150. For my 97, a little more, but not as pricey as the newer vehicles. The thing that sucks is it's just a potentiometer. They are making love to us with those kinds of prices, but don't really have much of a choice. KD

 

i have a 2000 how much should i pay for a tps i just got a price from the dealer for $504 just for the part