Transmission leak 84 xj - JeepForum.com

 
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post #1 of 8 Old 07-20-2013, 03:16 PM Thread Starter
Puzzlez
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Transmission leak 84 xj

So my transmission is leaking fluid like CRAZY! I can't afford a new tranny right now but I can't find where the leak is coming from. I poured about 5 qts in the other day, looked underneath and watched about 3qts just straight pour out the bottom but I still can't locate where its coming from. It seems to be coming from the top because it doesn't pour from the bottom. You can see a stream running down the side and dripping at the bottom. Any ideas of what to do???

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post #2 of 8 Old 07-20-2013, 03:42 PM
DaemonForce
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Sounds like your valve body tube is shot. This is a hydraulic transmission, right? Pull the pan, pull the valve body and give it a good examination.
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post #3 of 8 Old 07-20-2013, 05:35 PM Thread Starter
Puzzlez
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What exactly is the valve body? Sorry this is my first time working on a transmission
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post #4 of 8 Old 07-20-2013, 07:40 PM
DaemonForce
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When you drop the pan, you usually see this big plate looking thing bolted in with like 2 dozen screws. That is the valve body. The tube on this thing is what holds the pressure for the valve system to operate. Depending on what valves are open, this is what decides what gear(or share) is actuated. When you lose that tube, you end up with very low pressure. You experience slipping, lose 3rd gear, then 2nd, then 1st and reverse.

The behavior you described is something I associate with an experience when my car broke down in Vancouver. ATF was spilling out faster than I could pour it down the fill tube. Of course, in your case, I don't know if it's actually shooting out the top or going through a chewed up seal and leaking out the front of the bell like mine did...It could literally be anything. The safe bet is to do a rebuild.
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post #5 of 8 Old 07-20-2013, 07:46 PM Thread Starter
Puzzlez
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I'm trying to find a cheap transmission but its a pain cause I was told I could only use the trans from 84-85
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post #6 of 8 Old 07-20-2013, 08:06 PM
DaemonForce
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Oh that's easy. What do you have? An 84 XJ? Is that a 4.0L block with the AW4 bolted to it? Just pull another AW4. That should buy you some time.
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post #7 of 8 Old 07-20-2013, 08:59 PM Thread Starter
Puzzlez
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That's the problem... It's the 2.8l v6
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post #8 of 8 Old 07-20-2013, 09:30 PM
DaemonForce
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That sounds like a GM engine. V6? Oh, you have that. Okay. Pull the transmission from any mid 80's Blazer or an 86 Comanche. Good luck finding an automatic for it. All the picking yards up here seem to have manual gearboxes. (・ω・`)
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