I'm sure this is a common question for these transmission. The truck sat for 4+ years but is up and running with a few more things to fix. Transmission is one of them. 2 yrs previous I replaced the solenoids/pressure switches and the spring in the valve body. This was due to it was overdrive was acting up but after I replaced it the slipping started so I parked the truck till I could get back to it but wife got sick so that was why it sat for so long.After she passed away this year. I decided it was time to get her truck back on the road and to pass down to our daughter as her wishes. Well it was starting to seize up but got that fixed and did an upgrade to the intake plume. Its up and running great but after taking it out for a test run. It started out with a couple of hard shifts , then did ok for a little bit then it started to slip again. My guess would be with 2nd gear. It slips then goes into gear but then repeats when you slow down or stop. It will take off then slips. If any of this makes sense explaining? My next move is going to try and do a front band adjustment. The reason for this I really seem to think that the truck has 168,000 miles and it could be simple as its just bans being a little worn so a adjustment may be the fix? I replaced the filter and new fluid before I even started to work on the truck. Any ideas or opinions are being considered. Thanks

 

I need to clear up a couple of things after I came back to read it. The started to seize up was when I came back to start work on it after it sat for about 4 yrs. That was solved after letting it sit up with Marvin Mystery oil. I then replaced and upgraded the intake with Huges. This is what its was doing. When first took out. It goes into first just fine I did noticed it slammed into gear. ( This I mean into second gear) It did this twice or maybe three times. Kind of like it was low on fluid deal but I just filled it and replaced the filter. Then it seemed to act fine but then it started the slipping issue what i think was when truck was driven maybe a mile or so down the road. I did adjust the back band back when I dropped the pan to change the fluid before it sat but forgot about the front band. That is why I am thinking the front may need to be done as well. The slipping started after the spring was replaced and that was the original reason it was parked in the first place. Hope this helps to explain it better.

 

Try unplugging the 8 pin connector on the trans, and go for a drive. Bear in mind, you won't have any automatic function at all, you will have to shift manually, up and down. (you also won't get overdrive, or tcc.....) See if it still slips/behaves badly.

 

First thing, Sorry to hear about your wife. Does the transmission shifts fine from 1st to 2nd gear and slip in 3rd gear? You can try to adjust the band, But don't use a torque wrench. With the pan down,, Loosen the 3/4 or 19mm nut and move the center screw down until you have 1/4 to 1/2 inch free play in the band lever. If the doesn't help. You may need a complete transmission seal kit for the pistons. On High mileage transmission the seals get hard and cause fluid leakage which is why the transmission slips. And then in time it also cause the clutches burn the fiction plates. You can try also putting seal softer oil for the transmission see if the help, But it may not last long.

 

I read that in another post you talked about that. I will try it also.

 

Thank You. I am thinking it has something to do with second gear. I know it slammed into gear going to second a couple of times but then settled down but this was the first real road test for it in a few years. The slipping seem to come into the picture after the transmission was or either warming up. I'm guessing maybe about 10 blocks or so before it started. I did that adjustment you spoke of while the pan was down. The only adjustment I didn't do was the one located on the outside of the transmission. After everything, it was forgotten for the truck sat for around or more than 4 yrs. She bought it when it was still pretty new about 20,000 miles. The only transmission issue it has was limp mode which I changed out the two solenoids the first time. Then about a year later has to do the speed sensor. Then about maybe another year came the issue with OD that made me change the spring. That is when the slipping started. I did put some lube guard shutter fix. I was told that would condition seals?

 

It ran ok today but after talking to tranny guy. Its only going to cost $2,200 on the high end so I figure I will just save a few months and get it done and over with.

 

Thanks for getting back. Oh by the way, I am a tranny guy, 30 years with Dodge. If you have any questions let me know.

 

If you have 168,000 miles on a transmission without having it rebuilt you are doing good. My 2001 Durango had 93,000 miles on it when I got it and now has 138,000 miles and has been rebuilt twice. The first one was AAMCO and their rebuild only lasted only 38,000 miles. I would never take a car to AAMCO again.

 

I was just thinking today about what all has been done with the tranny. In the past before it got park, The first time in went into limp mode. I ended up replacing both governor and pressure switched. the about a year later ( don't quote me on time frame.lol) It went into limp mode again and that turned out to be the speed sensor being replaced. Then again around a year later it started to go in and out of over drive. I was told the spring was most likely broken so I again dropped the pan and sure enough it was broke in half so I replaced it. That's when the slipping started so I got aggravated and parked it thinking maybe a week or two I would deal with it but then wife got hurt on her job, that when things went down hill and the truck sat for 4+ years. I don't remember when I dropped the pan to make the adjustment but it was put back on but no fluid was ever put back in till here recently. The truck was never started during that time. I did a drive today but more on the easy side of maybe 30mph for about maybe 10 to 15 blocks and she didn't seem to slip any but she didn't really prove anything either. Now i am planning on doing the front bands adjustments but I do have a question. I did put shudder fix in it a few weeks back but I was also looking Lucas trans fix. The only reason is more to see if it helps any after adjustment is done. What do you think?

Now I am still looking to having it rebuilt so that I know its done and under a warranty. I figure if everything works right. I would be looking at maybe 3 to 4 months for this to happen. I would like to be able to drive it short distances till I can get this done. My work is like 5 minutes from my house so that is about the most it would be driven.