Jeepgirl20

I have a 92 Jeep cherokee sport, my drive train was changed by previous owners so it has 95 4.0L high output straight six automatic ( have no clue what it has for miles). Boyfriend and I went offroading with it (has 3 inch rough country lift), he got it stuck in a bog. While we we're trying to get it unstuck my transmission had sucked in water ( she was running while stuck in mud but we did shut it off a couple times and she ran when she came out) but we had lost all gears, wouldn't even jump in to any gear (was stuck in the bog for 3 days) . After we got it pulled home we did a oil change ( was water in oil) which she may need a head gasket. We also did a tranny flush, which we knew was a hit or miss because we don't know the mileage. There was A LOT of water in the transmission, we had also threw in some lucas stop slip with the new ATF. After tranny flush we shut it off for a minute, started it up and put in gear. She jumped right into gear and all other gears no problem. She was moving in all gears (no slips), after 5 minutes she lost all gears and wouldn't move (you hit the throttle it was like you were in neutral). So we shut it off for a minute and started it back up, she jumped into all gears and moved no problem and again after about 5 minutes she lost all gears. Due to everything under the hood being severely covered in mudd boyfriend decided to try jumping the cooler. Started her up, she jumped into all gears and moved. After 10 minutes we lost all gears yet again. turn her off and turn it back on she has gears again and then looses them. Any idea what might be going on with my transmission, is it saveable or do I need to put in the other transmission I have? We're trying to save the current transmission thats in it. Any help or advice here is appreciated.

OleBlue

Theres still water in the trans and thats probably causing the issue. If you got that much mud and water into the trans, its probably not saveable, at least not reliably.

I would cut your loss and put in another trans. Also check your tcm, it may be caked in water/mud cuasing issues to.

rawk krawler

No such thing as a v6 4.0

Check your tps, when mine shorted out it popped into neutral and rolled me down a hill haha.

sthon

x2. and next time don't let the bf drive.

Jeepgirl20

4.0 high output I-6 auto. Good call bub.

Jeepgirl20

We've been told that the clutches in it are probably worn, metals floating around, possible gears broken off... We have a new transmission that we got off a good friend for $80 bucks with transfer case. We'll be putting that in within the next couple weeks. Boyfriends no longer allowed to drive her. This is the second time*( apparently can't write this morning) he's gotten her stuck.

XJwonders

I had same problem when I bought my jeep from the junkyard and the tranny wouldn't go in any gears, then I dropped the pan down and replaced the filter, It was like magic, the tranny suddenly started working and haven't have me any problems in one year since.

Jeepgirl20

We we're wondering about that, she's really nasty underneath. We'll try changing out that filter, if it works then we'll keep this tranny. If not then I'm just gonna go with the other one I got. I just don't get it, she does fine and then all of a sudden she looses all her gears. Boyfriend said it also may be the pump.

XJwonders

Yeah I had the same symptoms until I replaced the filter, but in your case, it may be different

Jeepgirl20

She's been stuck in water twice now, I'm almost thinking I just need a new transmission. I'd like to try to save this one but I don't want to put too much money into this one just to have to change it. Already have $100 in just ATF. We'll try the filter, after that if it's not working I'm gonna put the other tranny in.

84zmyfavorite

Definatelly Dont waste any $$$ on HighEnd Synthetic ATF, Whatever You do. I would try maby 2 More Drain/Refills with Cheap ATF Dex/MercIII, like SuperTech(Wal-mart). Tell Who Broke It,..Fixes/Replaces it. Craigslist, eBay, Junk(recycle) Yards should Yield you a 1995 AW4 for $400 or less.

84zmyfavorite

Here in Washington, Oly4x4 has AW4s of that vintage for $400 or less, and they are warrantied for 30 days.

Jeepgirl20

Yeah, we used supertech when we did the tranny flush. We already have another tranny and transfer case. So if the one thats in it is gone then I have another to throw in her.

OleBlue

You are going to lose 4-5 quarts of atf when u drop the pan and replace the filter. If it was me and i had an extra trans, i would swap it, put the new filter in the new trans and refill with new atf and call it a day. Anything you put in the old one cannot be reused because it will be contaminated with water.

salad

Just curious what steps did you do when flushing? I agree that you should grab a new transmission, but do a few changes letting the thing idle for a few minutes in between.