Okay so last night while going out to get some dinner my transmission decided to start slipping. It was happening while I was accelerating from about 10MPH and also when going from a complete stop. I believe my input/output sensors may be going bad as my transmission has also been doing this little 150-200RPM jump while cruising in O/D.

When my Trans does its little spike, if I accelerate hard the RPMs jump all the way up to about 3k-3.5k and then it will finally catch and it will almost jam into gear.

The only modifications that I've done that tie into the transmission is I did a 545RFE TCM swap and I did a TMR delete. There are no check engine lights at the moment. I was having a code that referenced the TCM not communicating with PCM, I believe it was P1698. I have since taken care of that problem by cleaning the contacts with contact cleaner.

I called my local Oreiley and they seem to think that the sensors I'm looking at are $80 each. WtF? If anyone could provide some insight it would be awesome. Thanks in advance!

-Joe

 

You could tell you if your clutches are ruined by smelling the dipstick. the fluid gets burnt, by the slipping clutch's.

 

I would shop around for the sensor if you have to replace them... i have always found rockauto.com the cheapest on most things...

I know this might sound like a dumb question but, are you sure the fluid level is where its suppost to be?? I have known of a few that had similar issues and found that the fluid was a bit low..

 

Yes, the fluid level was the very first thing I checked. Does anyone have P/N on the sensors? Last I knew they were the same things just different spots on the transmission.

 

I would undo the TMR mod first since it is one wire iirc from your thread on it and diagnose from there.

 

Mopar part numbers are 4799061AB.

 

It was doing this before the TMR mod.

 

I do have the PDF file for code P1698. I send it by email if you need it. Just pm me your email address.

 

PM Sent.

Today I bought a new TPS and had Oreiley order two Transmission Speed Sensors (4799061AB). They come in tomorrow morning so tomorrow afternoon I will have all three installed. I guess I'll see where it gets me.

 

Okay, I replaced both transmission sensors and the TPS yesterday. As I was down there I noticed my pan had a wet corner. I checked the fluid and it was fine but now I wan't to have my trans pan gasket fixed. What should I get as far as service? They (Certified Transmission) have a basic pan off service to remove the fluid and change filters for $127.50 and then they said they have a pan off flush package. I told him I didn't want to to that. But he said they'd scan it for codes and see what its doing and we could go from there. I need input on this ASAP! Thanks in advance fellas! -Joe