Ford F-350 and 4R100 Questions?

[macdaddy]

My brother in law was backing up his F-350 with 4R100 auto up a serious incline with a 9K travel trailer and transmission fluid started pouring from the bellhousing dust cover.



The truck has no codes, fluid is burnt in appearance. We let it cool and refilled the trans and the dam think runs fine with no fluid coming out from where it did while backing



The truck has 130K on the clock with no other issues.



Any ideas where the fluid came from????. Seal??. And why does it not leak now?



Mac

 

[Grizzly]

Mac,



You may want to tell your B I L that the next time he gets a new truck, he should consider a Dodge with a Cummins Turbo Diesel in-line six engine and a standard 6 speed transmission.



That ought to solve all his Furd problems.

 

[macdaddy]

Mac,



You may want to tell your B I L that the next time he gets a new truck, he should consider a Dodge with a Cummins Turbo Diesel in-line six engine and a standard 6 speed transmission.



That ought to solve all his Furd problems.

Oh hey Grizz.....



You've heard the phrase "there's a time and place for something?". Well when it happened it wasn't a good time.....



He only paid 10K for the truck which my father in law bought new. My father in law now drives a dodge:-laf.



I'm thinking it's a seal of some sort.



Mac

 

[Ram4Sam]

It is probably fine, that is not unusual for those transmissions. They don't like a heavy load while in reverse. The fluid overheats and it pukes the fluid out of a vent line.



Sam

 

[macdaddy]

It is probably fine, that is not unusual for those transmissions. They don't like a heavy load while in reverse. The fluid overheats and it pukes the fluid out of a vent line.



Sam

This is what we are seeing on the forums at dieselstop.com.



One question though, does the vent line vent into the transmission bellhousing?



Mac

 

[Ram4Sam]

I can't recall for sure, but I don't think so. It's been so long ago that I dealt with this but I think it up high on the top of the trans somewhere. Oil leaks/drips tend to drip/drop from the lowest point, which the bellhousing is. I would think if it was a blown seal or something like that, it would dump the new fluid out also.



Sam

 

[mwilson]

GM Turbo 400 transmissions would do the same thing if a little overfull of fluid and then overheated.



Vent was also on top so it would make you think it was coming from elsewhere depending on how the rig was sitting.



Mike.



Also would do it going right up the road while towing if it had been overfilled in the past, big cloud of smoke. Scare you just about to death until you figured it out.

 

[Bill Stockard]

GM Turbo 400 transmissions would do the same thing if a little overfull of fluid and then overheated.



Vent was also on top so it would make you think it was coming from elsewhere depending on how the rig was sitting.



Mike.



Also would do it going right up the road while towing if it had been overfilled in the past, big cloud of smoke. Scare you just about to death until you figured it out.

You got that right! I owned two different tow vehicles with a 454 cid in front of the TM400 and it doesn't have to be overfilled to overheat and blow fluid out of the vent on to the hot exhaust pipe and lay a smoke screen. I had it happen a couple of times and I was very careful not to over fill it.



Bill

 

[BIGNASTY]

Mac I know its a drive for you but Diesel Tech in San Jacinto Ca are the go to guy's for the Power Joke trucks. You can call them and ask questions they are VERY good with Ford trucks Welcome To dieseltech1. clickforward.com