It's never leaked while driving. - The trucks a$$ end is jacked up and the front end is down on blocks in order to work in the engine compartment comfortably. It's been in this position for about 3 weeks and it didn't start leaking until recently.

I noticed a puddle of tranny fluid on the ground that looks to be coming from the filler tube were it enters the transmission. I'm sure this because of the position the trucks in right now.

So -Kinduh of a dumb question maybe - This should be fixed correct ? What should I use ? A metal filler or epoxy ? Or is there another set of O-rings to replace ?

There is a red epoxy around it now. This is factory. To remove the lower section of the tube, I would have to grind that stuff off first.

Idunno - has anyone had a problem with this before?

 

there is an o-ring on my fill tube, mines tore up from the recent trips in and out. since your trucks out of commission, you could pull the tube out and go find another o-ring or just do what i'd do because im lazy. use some good quality silicone and smear it around the stem.

 

The tube is two piece . I pull the long section all the time and it has new o-rings. Not leaking their. It's leaking right at the trans port where there is a second tube about 6" long. It's not leaking at that union, - leaking at the trans. Unless u mean that has o-rings as well - it looks to be a press fit.

E4OD btw.

 

nah mine, 4r70w obviously, but it still has an o-ring at the trans housing. its 1 pc too.

 

Thanks Klitch - Hey , do you recall if you have some sort of factory epoxy around the tube before it enters the trans ?

It stopped leaking for now - mann, that's strange - I guess I'll chip all that epoxy off of there and thro some liquid metal back down. I better not grind it off - There must not be any pressure in that area when she's running. It doesn't leak.

 

nah the pan and tube dont have much pressure. i never seen any epoxy around my tube, the o-ring held it in good enough i wanted to throw a fit.

 

dont have any experience with the 100s, but the 70s have a one piece filler neck, the tube slips down right through the top of the casing, just above the pan, and has just a single O-ring.

as far as your problem, i would imagine just leave it be, fill up the trans and drive it normally (once you get back to that point) and see if it will leak more.....

 

jbrew cant leave anything on his truck alone, i wish i had his free time lol

 

It probably leaked because of the attitude the truck is sitting, and the torque converter has drained from sitting. Once the truck is back near level and driven once in a while it probably won't leak again.

 

Okay, thanks for the info.

Yea, I'll probably do that. I'm going to need a hand tuning this one later - Hope you'll be around.

- Well, it's getting old (over a 1/4 million miles) and not pulling like it use to. Trying to get her back at 100% or better.

I didn't think of that. I leveled her out for now and it's not leaking. It hasn't been stationary for this long before and it took awhile for it to start leaking. I was going to pick up a quart of Amsoil while at the store the other day - Mannn -$10 a quart. I forgot how expensive that stuff was, but that stuff did save my a$$ in the long run. The old guy in town that works on transmissions told me to add little friction modifier to the trans a few years ago (that's right -to the trans) - That and Amsoil as well. My trans was slipping real bad, thought it was toast at the time. He also suggested a shift kit. Shift-kit/Amsoil/friction modifier and she's been awesome ever since.

Thanks fella's,

brew

 

ill be here, just holler when you're ready

heard that before too, worked here, but went to back to stock fluid on my second flush. No problems either way.

 

hey jbrew,
any luck with your filler tube? did you end up replacing the 0-ring? i recently replaced my tube and o-ring and now the damn thing won't seal and keeps leaking. Just wondering if this has happended to anyone else??

 

Jbrew, the stubby bottom tube doesn't have an o-ring. Not sure what they put them in there with but they're tough to get out without much mangling. If you decide to take it out your best bet is to tap it out from the bottom with the pan off. I think we used red loctite or some kind of silicone on them at the trans shop where I worked, never had any leaks that I can remember. But like everyone said, it will probably be fine once the truck is sitting level again.

 

Sorry didn't see your post. You most likely have a solid tube, I have a split tube - unless your running with a 4R100, I doubt you have the same set up. Yea , I didn't even chance pulling it out. However, I did clean around it real well and put a bead of RTV around the seam where the tube enters the trans.

Truck was down for along time (Major tune up/ replaced all brake lines (hardline + hoses) Ported/re-polished intake/ re-wired) - 3 months +. Needed it @ 257,000 miles.

Trans is original. Fired it up for the first time 3 or 4 days ago. The only thing strange with the trans at first was the OD off light illuminated on it's own. Hit the button / turned it off/ few seconds later, it came back on ? Shut it off again and it's been okay since. That was upon first start, probably needed to cycle.

No leaks - One of my brake lines (short hard line on the rear axle) leaked - Not sure why it leaked, flares looked good. Made a new line/ replaced it.

Had a bad shimmy @ 45 mph ( steering wheel jumped back and forth). That ended being the front shock top bushings. I used polyurethane in place of the factory Bilstein bushings. That didn't fly - purchased another type bushing - Larger/softer and the problem went away.

Running great now , very happy.

 

Glad I didn't dig into then - Yea, after cleaning up around it, it didn't look like an O-ring type fit from the outside, from what I could see - LT headers made that about impossible - Had to use a mirror to get a good look..

Looked like the went into a bright red type insert of some kind. I used some silicone around it and called it good. I trust those guys that posted earlier and they were right IMO - It was from sitting so long at that angle.