Transmission overheating

[palsdot]

I am new to the forum and am looking for some thoughts or advise on my 1996 F250 crew-cab with Auto Transmission 152,000. The truck is stoke except for a powerchips programmer used on Tow-safe and a HD TC on the transmission which was put in 2 years ago because of a blown seal while pulling a horse trailer up a mountain road and I lost all fluid. The tranny shop said that everything else looked good but now i am having issues with it overheating every time i pull something. I don't have a temp gauge but i can reach down and grab my 4-wheel drive shifter and it is hot. I stopped at a rest stop this weekend after pulling a small 25ft fifth-wheel camper for about 200 miles at 70mph and noticed that i was leaking tranny fluid which appeared to be coming from up near the fill tube and blowing back under the truck while driving. I have also had issues with the truck not wanting to back up when i first get in it but seems to be fine after it works through the gears. I plan on taking it back to the same tranny shop but am wondering if anyone has any ideas on what i can expect?
Thanks,
Mark

[STROKED_NY_023]

Have you checked you cooler?? If its running through just the rad still you probably plugged up. Have you ever had it flushed?? Your definatly goona want to add a stand alone cooler to it either way. Get a 6.0 cooler and you wont see temps over 150 ever... I haul a 5ton excavator with my truck and the highest i have ever saw was 140 and that was up a very steep grade...

Hopfully you didnt smoke the trans and are not looking at a rebuild. If you are you"ll want to go with a billet triple disc converter, all steel planets, and aupdated VB or shift kit. Also install an SD pan, they have drain plugs.

[palsdot]

I forgot to mention that i have been getting what i think is bad fuel mialege also, i was only getting about 10 while pulling the camper and 13-14 without the camper. I was getting around 2 years ago. I just changed the oil, air & fuel filter before going on the trip!

[palsdot]

My cooler is just going through the radiator. Unless this is plugged up it should work fine to pull a 25ft fifth wheel with out heating up the tranny shouldn’t it? I would think I would only need a stand alone if I was pulling heavier loads and more often. I do notice that the truck seems to shift and run a lot better if I change the superchips setting to Perf-Tow.

[palsdot]

Is it normal for a motor not to rev when it is cold? I have my EPBV disconnected and i know it is not the issue but have read other articles about not having power when cold due to the IPR. I can hold my pedal to the floor after warming up for 5 min and it will not free rev almost like it is not pushing the fuel. I think this is part of the reason my truck will not move until it is warmed up and not even part of the tranny issues.
Any thoughts?