Issues with leaking

[CamoGoddess13]

I have been having a issue with leaking from where the dip stick tube goes into the transmission. I am wondering if there is a gasket or something that I can replace? Any help would be appreciated

 

[0xDEADBEEF]

I think there's an o-ring on the tube. You have to pull it out to replace.

 

[Joe Dirte]

I think there's an o-ring on the tube. You have to pull it out to replace.

Yep. And gotta get to back side of head to get bolt out that holds tube in.

 

[langkg]

If it’s a 4L60E the dipstick has a hat shaped grommet that goes in the case. The dipstick is held in place with a double ended bell housing bolt that is real fun to get to…

Make sure your not leaking somewhere else like the case connector for the electrical connection. Sometimes it’s deceiving because fluid can run along the pan rail, etc and lead to misdiagnoses

 

[stutaeng]

OP didn't specify what transmission or year.

I believe the TH350/400 had the o-ring. The 4L60e & 80e have the little hat looking seal. Not sure of the 700R4, I've never been close enough on those to notice what they use. I would think it's the same as the latter.

 

[Schurkey]

I have been having a issue with leaking from where the dip stick tube goes into the transmission. I am wondering if there is a gasket or something that I can replace? Any help would be appreciated

WHAT VEHICLE? What transmission?

OP didn't specify what transmission or year.

I believe the TH350/400 had the o-ring. The 4L60e & 80e have the little hat looking seal. Not sure of the 700R4, I've never been close enough on those to notice what they use. I would think it's the same as the latter.

Dipstick tubes sealed with an O-ring have a tendency for the tube to crack where the groove for the O-ring is rolled into the tube. Essentially invisible until you remove the O-ring.

The "top-hat" seal and tube is FAR superior, but harder to work with. I end up getting the lubricated seal 1/2 installed in the trans, the lubricated tube 1/2 installed in the seal...and then cram them into position.

Transmissions can leak from one place, the fluid gets blown-around by under-car wind, and it looks like something else is leaking. Be sure it's really the dipstick tube/seal that's the problem.

 

[CamoGoddess13]

Thank you for your help. I have the 4L60e. We definitely know that it's leaking from the dip stick tube area. I just wanted to check if I was going to have a easier fix or need to have a shop do it.

 

[stutaeng]

If your truck is a 2wd, remove the transmission crossmember and lower the tailhousing and that will give you enough room to remove the dipstick bracket at the bellhousing. I was reinstalling a transmission once and forgot all about the dipstick, and that's what I did. The bellhousing was already bolted up, but lowering the rear of the transmission worked for me. Put a wide piece of wood if you are using a jack so you don't bend the oil pan of the transmission.

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4x4 would make this a lot more labor-intensive.

 

[CamoGoddess13]

I have a 4x4 so I will have the mechanic who installed my rebuilt transmission take care of it. Thank you for your help

 

[Erik the Awful]

I believe the TH350/400 had the o-ring. The 4L60e & 80e have the little hat looking seal. Not sure of the 700R4, I've never been close enough on those to notice what they use. I would think it's the same as the latter.

The 700R4 also uses the "hat" seal.