I have a minor leak at the base of the trans dipstick tube. I assume that the tube is press in ? has an o-ring ?
I put some silicone around the area and that worked about a week, the fluid is probably eating through that type sealant.
The trans is a 4r70. Seems to me that the actual tube should be ok and having never dealt with replacing one I want a little advice before yanking it out.

 

first, are you a ssgt of marines? Im a corporal of marines. Second, most tranny dipsticks just pull out and theres an o ring down in there. usually a quick fix, and about a 39 cent part.

 

SSG is the initials of my buss. I was an e-4 in the Army working on the ah-1s cobra helo's weopons systems.

The o-ring is in the hole and not on the tube ?

 

some Ford transmissions have a small adapter that comes out of the case and that what the actual dipstick and o-ring go into. If it is leaking were it goes into the case it is pressed and glued in at that point. Then were the dipstick goes in there is an o-ring. This dipstick adapter if you will is only about 6 inches long

 

The catalogue and picture do not show any type of adaptor, but there is an oring on the bottom of the dipstick. It should just pull out of the transmission and press back in. There is a bolt holding the tube to the engine that will need to be removed. Be sure to get an oring made of oil resistant rubber. Dan.

 

I've ran into this a few times on 4R70W's-the dipstick tube gets a bit warped during initial install,and it will leak over time. The best solution(that actually works) is to drain a couple of quarts of fluid, remove the tube, and clean the O-Ring area well. Use some Ultra-Black RTV,and place a 1/4" bead around the entire circumference of the tube above the O-Ring and place the tube back into the case. This RTV will help seal the area where the O-Ring is leaking,and you won't have this problem again. Give it an hour or so to dry before topping off the trans fluid or operating the vehicle.
JL

 

just found my trand dipstick tube leaking also.. brought it to a shop and they said they have to order the dipstick tube and rubber ring from ford.. they charging me 100$ to fix it!! i kno thats seems high but i dont kno ishhh about fixng truck.cars.. and need my truck for work so im paying the 100$

 

I just pulled mine a couple weeks ago and I seem to think it was like a grommet that the tube went into.

 

2001 F-150 leaking or pushing trans fluid out the vent pipe on top HELP!

 

You should start your own thread. This one is almost five years old and can get lost.

 

None Sense - This is wonderful place to ask a question

 

Thanks for the info, would someone please walk me through replacing the transmission filler tube on my 2001 F150 please. I put in a quart of fluid and ALL of ended up underneath the truck and not in the transmission. ��