Engine/Transmission (1994 - 1998) Transmission Problems

[BigPapa]

I'm having basically the same problem with mine. My transmission man said it was the front seal leaking and that it might go another couple of years before I need a new trans or rebuild. I'm saving my money.

 

[Joe G.]

I don't think a front seal leak would cause a shift problem. It's just messy and rust proofs the bottom of the truck. If it's a leaking lip seal, then it may take quite a while before it gets bad enough to need a rebuild.

 

[Howard Durand]

Pat,

Before you spend a gob of money on a new TPS take it off and make some resistance checks.

I recently bought a new TPS from an ad on the Classifieds here on the forum. Paid about $60. 00 for it. Brand new and in the box.

He said he had some more but that was some time ago and the ad is gone now. I installed it and it performed the same as the old one.

I got curious and checked the resistances of the old one and here are the readings I get.

Hold the TPS flat with the metal hub up and the connector pointed at you so you can look in and see the connector pins.

Number the pins 1, 2 and 3 right to left.

#1 is ground, #2 is signal and #3 is +5 volts.



The resistance between pins 1 and 2 should be about 360 ohms.

Between pins 2 and 3 should be about 2700 ohms and between 1 and 3 should be about 2400 ohms.

As you rotate the hub, resistance between 1 and 3 doesn't change, resistance between 1 and 2 increases to 2600 ohms and between 2 and 3 decreases to 360 ohms.

These readings were taken with an old Simpson analog meter so they are approximate. If yours checks out anywhere near this I sure wouldn't pay $200. 00 or more for a new one.

 

[Piersol]

lip seal

When my lip seal went my dealer told me to put some transmission sealer in the fluid. I'm all for saving money but I didn't think that was a good fix. I had the whole thing rebuilt while it was out because I planned on keeping the truck for awhile. If you feel ok about using additives you may want to try it.

 

[PKemp]

Howard... Joe... ... .....

I pulled the PCM connector like you said (disconnected the neg terms on the battery first). Checked all the wiring to make sure nothing was pulled loose, burned, pinched, cracked, etc, etc. Everything was okay. Put it back together and then a short road trip (made sure engine was up to operating temp) found my long straight road and tried out the trans again. No Change... ... .



Well as soon as the manual gets here we're going to do the pressure checks. Haven't ordered a TPS yet either. I'll have to go stand at the mall and sell pencils first to collect enough for the Dealer... .



Piersol: I dont know about these sealer additives, they make me nervous. I'll check everything first I think.



I'll holler back as soon as we check the pressure and kick-down linkage.



... . Pat

 

[Piersol]

I hear ya, buddy. I didn't use it either but some people go for that stuff.

 

[PKemp]

Well, got an email today from the book people. The 47RH manual is back-ordered, no delivery time yet.



Does anyone know where else I can find one?

I tried Dodge/Chrysler on the internet with no luck.

My dealer doesnt have any and couldn't find a "part number" for a service-overhaul manual for a 47RH.



I give up... . ! This is crazy... . !





... . Pat

 

[shendren]

pkemp,,,,,



have you talked to bill kondolay about the problem you are having? he is a sharp guy and will probably help.

 

[Joe G.]

Pat,



The '95 Dodge Ram service manual has the transmission overhaul procedures. I used it when I did mine. It also has diagnostic procedures including how to do the pressure tests. It's pretty complete.

 

[Howard Durand]

Pat,



If you have a good public library close by you can probably find service literature there. They normally have a pretty comprehensive automotive section and usually you can make copies right there of what you need.