Careful - the seal/gasket between the transmission and the transfercase is leaking and forcing fluid up the transfercase vent. This has been known to start fires on the right hand side of the exhaust and burn a bunch of stuff including the vacuum system and the O2 wiring.

 

So I posted a while back about tranny fluid coming up my dipstick and leaking out. Can anyone tell me what seal that is, and how I go about fixing it, or point me to a thread. I attempted to search, with no luck.
Please ehlp me, I need to get this fixed soon, as I am sick of putting tranny fluid in and having it come out!!!

 

You lost your previous thread..?

I'll merge this back into the other one.

The seal you need is the transfer case input seal. You may want to search for just that; "transfer+case+input+seal" and see what turns up.

If you have the 3-button NV233 transfer case, then regular ATF is all that is needed in the transfer case. But if you have the 4-button NV236 transfer case, you MUST use GM AutoTrak II fluid in the transfer case or you will damage the viscous coupling.

If you ever need to find your threads again, you cam search for posts by author using the advanced search option from the search drop down in the top menu bar. Just type in your screenname and click 'search now'.

 

Thank you

I have the 3 button 4WD. Is this a hard fix??

 

Other than removing the transfer case to get at the seal, no.

 

If you must drive your vehicle until you can replace the seal, remove the fill plug on the transfer case to allow the excessive fluid to drain out and reduce the chance of over flowing fluid to drip on the exhaust. Transmission fluid can cause a fire.

 

yes it can, i have seen it first hand. we had to use a fire extinguisher to put it out. man was that scary.

 

first of all .....trans fluid coming out the dipstick would indicate transmission overfilled/overheating issue. transmission would also blow fluid out the vent on the top of the tranny . the transfer case seal would cause fluid to come out of the transfer case vent not the tranny dipstick .

 

Considering that the first reply didn't really give a clear indication of where the fluid was coming from, we just went with the most common problem. You may want to also take a look at the vacuum/vent system for the transfer case. The transfer case vent is what is strapped to the transmission dipstick tube...