Guys I've got a problem with tranny in my 99 Durango, 4x4, 5.9L, with 100K on it. It shifts fine into second but, slipps slightly going into third under light accelleration this shift seems premature also. It shifts fine when you just lay the pedal on the floor from dead stop. I had the fiter changed and bands adjusted this helped some. It seems to me this is an electrical or pcm problem being that it only does it under light accelleration and, the shift seems to come too soon, kind of like take off and it shifts to 2nd at the right time, then immeditly shifts to 3rd and slipps slightly, then is fine when shifts to OD.
I'm thinking of changing filter again and maybe putting synthitic ATF in it. I also want to put and external filter on it, I know the external filter won't do anythig for the problem, but just want the additional filtering down the road.
I wish I knew more about these autos, but they have always been mystery to me.

Jed

 

Got a similiar problem with my work Durango...
At light throttle, the upshift to second gear kicks in and out of first/second a couple of times before finally settling down into second gear. Mash on the skinny pedal, and it shifts OK. Had the tranny flushed and serviced- no change.
Computer going flakey?

 

Do you have ATF+4 in it? Sounds like one of the symptoms of a universal fluid. ATF+4 is synthetic and there is none better.

 

I think sadly it's just because of a junk tranny!! The trannies in a Dodge gasser have always left something to be desired, my old 99 1500 w/ a 360 had nothing but problems with its tranny. I ended up selling it because it got extremely old extremely quick!!

I also had the same slipping problems and could never figure out why it was doing it.......I tried servicing it, adjusting stuff and nothing ever helped. Plus 99 was a bad year in general........I've heard about a lot of problems with the trannies in 98's and 99's. Mine definetely fit the shoe


~Nick

 

A recently retired co-worker has over 118,000 on his '99 reg cab SB 1500 with 360 and 46RE tranny. He's replace the a/c evaporator and regular maintenance. Not even a hint of transmission trouble. The 46RE and the 48RE are in the same transmission case. The 48RE has much heavier hardware in it.
The other possibility could be a shorted or faulty governor pressure sensor/solenoid assembly. It can cause weird shifts and will even get to the point of shifting through gears while sitting still. You'll feel a little lurch or two and then take off in 3rd gear or 2nd. It'll do strange things.

 

Hannibal, how can I diagnose and faulty govenor pressure selnoid,once I have the pan off do i need to drop the valvebody? I don't even know what it would look like. Maybe I can buy a service manual for it what brand would be better Chiltins, Hayes or Dodge. I just don't know my way around auto trannys. I diffently will put ATF-4 in it when I service it again.
You said the 46re and 48re are the same case I've always dreamed of a 4BTA in this truck. Would the electronics just plug up from one to another? I'm guessing the T-case would bolt up. Is the 47re the same case as well?

Jed

 

AGREED, they are junk. Read over on gasser forums about trannies dying. My 97 had its tranny rebuilt right before I bought it, it was SUPER tight. 2nd and sometimes 3rd gear chirps. When I sold it, however, it was getting loose, and acting wierd. I'm glad I got rid of it.

Hope you get it fixed.

 

I wish I could answer your questions but way beyond my capabilities. I had to take my '01 to the dealer and they diagnosed it for me. With my '03 Cummins and it's 47RE, when I did the tranny service at 24k miles, I noticed the wire harness to the valve body where the governor pressure sensor/solenoid lives, was tight against the edge of the valve body and just about worn through the wires touching it. I've always wondered if that's what happened to my '01 and it wore through. The governor pressure sensor/solenoid is an assembly and is replaced as a unit. If I remember right it was about $240. I've slept since then...
However, the fact that you said if you floor it from a stop it does great leads me to believe it's valve body or throttle position sensor and not a worn out transmission. The guys at the dealership said the governor pressure sensor is a common problem and many transmissions get rebuilt at by unscrupulous shops at the expense of the customer when all it needed was the sensor. I thanked him for his honesty and they get my business for what I can't do with our Durango and Ram(s).

 

I have felt this before on several RE transmissions, and just diagnosed and repaired one last week. Monitored the governor pressure with a gauge, and found it was erratic at low speeds (bouncing from 5-15 psi). Did some checks, then replaced the governor pressure solenoid and sensor. All is well now.

 

Toquefan, where would a man find the port to monitor? And what kind of pressure would I be looking for at idle, light accelleration,and full thorttle? I hope I can fix this with going to tranny shop or a complete rebuild. You all have helped alot already I now know twice as much about this tranny than I did yesterday.

Jed

 

The governor port is on the right side of the trans, I'll have to look at a diagram to remember exactly which one. The pressure should be 0-1 psi at idle, then it increases roughly 1 psi for every mile per hour your speed increases, to a maximum of around 60 psi. It helps to have a scanner, so you can verify that the output speed sensor is working smoothly, but a good multimeter will work.

 

Torquefan, On the right side as in the passenger side? aslo I have a Fluke muti-meter but have yet to figure out how I would monitor sensors with it although I've heard people mention using them. you guys are helping a lot keep it coming.

Jed

 

Yep, the passenger side. It's one of the rearmost ports. Sorry, forgot to look at a manual today, will try tomorrow.

 

Sorry for the delay, Linetrash. The governor pressure port is on the passenger side. It is the uppermost of the two rearmost ports. It faces out sideways. (The other one points rearward). Basically, it's straight up from the right rear corner of the pan. I wish I had a picture to post. Hope this makes sense.