Tranny Fluid for T-Case Questions

98XJSport

Destiny is the rising sun

Location

Western Maine

• Jul 12, 2006

• #1

I have a 98 XJ with the NP231 (I think, no full time 4x4). I have recently sprung a leak from the rear output seal, second in 6 months. I am saving up for a SYE so I won't have to keep fixing this, but until I do I need to use it to run errands and such. Will ATF with stop leak harm anything? If it even helps at all.

Secondly, is tranny fluid flammable? Its getting all over my cat. converter and has started smoking pretty good. Landlord won't let me try burning some in the parking lot, so I must resort to asking. Thanks for the help.

 

CanMan

NAXJA Forum User

Location

Lake Tapps, WA

• Jul 12, 2006

• #2

98XJSport said:

I have a 98 XJ with the NP231 (I think, no full time 4x4). I have recently sprung a leak from the rear output seal, second in 6 months. I am saving up for a SYE so I won't have to keep fixing this, but until I do I need to use it to run errands and such. Will ATF with stop leak harm anything? If it even helps at all.

Secondly, is tranny fluid flammable? Its getting all over my cat. converter and has started smoking pretty good. Landlord won't let me try burning some in the parking lot, so I must resort to asking. Thanks for the help.

Click to expand...

ATF with stop leak shouldn't harm anything, but probably wont stop a output yoke seal from leaking. But your leaking seal may be caused by a groove in your output yoke, common on pinion yokes, caused by the seal itself. Or they may just be crappy seals? I personally have never seen ATF catch on fire, but have herd people BS about "it had a tranny fire" stuff, So I can't help you out there. Just try it when the landlord has her/his back turned.

 

98XJSport

Destiny is the rising sun

Location

Western Maine

• Jul 12, 2006

• #3

I think the leak is from the 4.5" of lift with only a tcase drop and shims. That combined with bad rear shocks allowing for shifting/play perhaps? Anyways its not that bad of a leak, barely drips when not moving, just gotta try somehting cause it sucks to keep having to fill it up frequently while the part hunt is on.

 

J

Jim Mesthene

NAXJA Forum User

Location

New England

• Jul 12, 2006

• #4

ATF burns quite well once it gets going. I've extinguished it more than once.

 

98XJSport

Destiny is the rising sun

Location

Western Maine

• Jul 12, 2006

• #5

Flame ignited Im assuming then? Not heated until it bursts into flames etc...

 

J

Jim Mesthene

NAXJA Forum User

Location

New England

• Jul 12, 2006

• #6

Once from a cutting torch, once from an exhaust manifold.

 

9

96CheroKeeClassik

NAXJA Forum User

Location

Carbondale, Illinois

• Jul 14, 2006

• #7

you should wash your cat. most of them don't like water, let alone tranny fluid. ..ha

 

H

HotChiliRam

NAXJA Forum User

Location

Santiago, Chile

• Jul 14, 2006

• #8

Tranny fluid do burn. A guy here totalled his XJ because he had a leak in some of the tranny lines. The Jeep caught fire and burned till fire had nothing more that was flamable. So, it consumed the XJ compleatly.

 

L

lawsoncl

NAXJA Forum User

Location

North Idaho

• Jul 17, 2006

• #9

Had a professor towing a huge trailer back in college. It kept hunting between gears and slipping alot. Being an automotive engineer, it didn't occur to take it out of overdrive. Anyway the tranny overheated badly and started spewing ATF onto the exhaust manifold. Amzingly, he managed to find the fire extiguisher in the trailer in the dark and got the engine fire out. Total damage was nearly $3000 though.

So yes, it can ignite from a sufficiently hot ignition source.

 

98XJSport

Destiny is the rising sun

Location

Western Maine

• Jul 17, 2006

• #10

Hmm perhaps I should stop driving it until I fix the leak...