Water gets everywhere when you are wheeling, could have come in through the shifter hole, maybe a loose fill plug i'm not real familar with the t18 but water likes to seep in every little seal. Also when your wheeling water will splash up and get into places you never think it will. Unless it was really puking out the fill hole you probably didn't get that much in it. I did fill a diff to the point once that about 4 quarts of grey goo was comming out, that's when you know it's really full of water.

 

I think what Andy was trying to say was....

Jim,
Thanks for reminding us that we need to drian and fill all of the cases to be sure they didn't take on any water.

Isn't that right Andy??

Thanks Jim

 

After reading these messages, I went out an checked the tranny fluid. It looks nice and clean (kinda pink) and clear. Will water turn tranny fluid milky the way it does oil?

 

Ya paluI it will go from milky to brown like a shake.....I have seen it so brown and nasty that you had to scrape it out of the dif's

Knock on wood, I have not had a problem with the TJ yet.

 

Paul you have to be real careful with the autos they don't like water at all and will die quick, manuals are a little more durable. I'm not sure what year your jeep is and what year jeep went to the 4 speed auto in tj's but my old tj had the 3 speed auto(pretty much the same tranny used in 80+ cj's, yj's, and tj's). I filled it with water not once but twice and had it re-built twice and had the vent mod done after the second re-build.

The reason why the 3 speeds (i don't know how the 4 speed auto works and if this applies to them) suck in water is they have a pressure reliefe valve on the top of the trans and if you are in deep water or mud it can suck in water.

The only way to move the vent is to pull the trans and dissasemble it. Here's a write up http://www.ifsja.org/tech/transmission/727vent.shtml for a wagoneer trans but it's very similar and any trans guy should be able to make it work on a tj 3 speed trans.

We were going to have it done to our yj and i think the trans shop around here wanted 350 if we brought the jeep into them to have them do it and the re-build they did was either 650 or 750 so it's a whole lot cheeper to have it done before the day of death arrives. I wouldn't even think about having jeep do it and if you are still under warenty i'm not sure how this will effect it (you might even be able to get them to warenty a water filled trans if you were really nice and when they said no show them a jeep add where there's a jeep in water up to the bottom of the doors).

 

In reply to:

what year jeep went to the 4 speed auto in tj's

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2004