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front seal on aw4 tranny

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Old 04-15-2011, 06:05 PM
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Default front seal on aw4 tranny

anyone know if there is a seal in the front that could leaks or is the pump seals leaking all i know is all of a sudden i see little specs of oil start coming my tail gate and looked underneath and a lot of oil seemed to be coming from inspection cover. i hate Chrysler trannys and dont even mess with them so im not to familiar with them other then every chysler tranny ive had/used/seen are the biggest pieces of junk in the world
Old 04-15-2011, 06:22 PM
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Is it oil or tranny fluid?
Old 04-15-2011, 07:13 PM
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Originally Posted by FrankZ
Is it oil or tranny fluid?

sorry oil= tranny fluid
Old 04-15-2011, 07:20 PM
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I Believe its the pump is bad in your trans same thing happen to mine changed front seal and blew it out about 2 months later.
Old 04-15-2011, 07:21 PM
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Originally Posted by 98CherokeeLimit4x4
I Believe its the pump is bad in your trans same thing happen to mine changed front seal and blew it out about 2 months later.

the only thing with that is that it shifts perfect and works fine just today it looks like it puked tranny fluid all over underneath but isent leaking
Old 04-15-2011, 07:23 PM
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how does the fluid look on the dipstick? sould very well be the front seal, and its not a chrysler tranny.
as long as it diddnt spin the bushing on the converter or in the pump it should be fine.
Old 04-15-2011, 07:25 PM
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Originally Posted by ct67_72
how does the fluid look on the dipstick? sould very well be the front seal, and its not a chrysler tranny.
as long as it diddnt spin the bushing on the converter or in the pump it should be fine.

its black as night just about, im sure im due for a new filter and fluid but idk y that would cuase the pump to leak all of a sudden
Old 04-15-2011, 07:30 PM
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Black? WTH thats not good lol my front seal leaks really bad but trans fluid is still red. change fluid i guess and make sure its not leaking before doing so.
Old 04-15-2011, 07:32 PM
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any recomendations on where to get tthe front pump seal
Old 04-15-2011, 11:12 PM
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Napa has the seal for about $7. The problem is it may not just need a seal. Sometimes that's all. Other times it's either a worn out pump bushing, or the torque converter has a groove worn in it that'll eat any new seal you put on. I'm in the same boat. It started as a small leak, but after about 300 miles it's a very big leak. The puddle after I shut it off is about as wide as a roll of toilet paper. Hopefully I'll have it apart soon
Old 04-16-2011, 09:43 AM
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I'd get the stuff checked or swap in another transmission.Sucks changing a seal and it blowing right back out alot of work for nothing.
Old 04-16-2011, 10:50 AM
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Again back in the day and I can't see why its changed from the exploded view of the AW4.

The front of the trans where the inspection cover is basically is covering the converter/bell housing/ front pump of the transmission. Where the converter slips onto the splines of the trans front shaft there is a seal.That is the front pump. Around the outer edge is the front pump O-Ring. Usually if it is trans fluid ( you can drop the cover and stick ur finger inside or use a flashlight and mirror) if there is fluid inside the bell housing that matches what ur drippin your front pump is leaking and its usually the outer o-ring and not the seal but both are replaced since to get there -The trans must come OUT, (unfortunately).
Old 04-16-2011, 10:57 AM
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Originally Posted by InvaderTrax
Napa has the seal for about $7. The problem is it may not just need a seal. Sometimes that's all. Other times it's either a worn out pump bushing, or the torque converter has a groove worn in it that'll eat any new seal you put on. I'm in the same boat. It started as a small leak, but after about 300 miles it's a very big leak. The puddle after I shut it off is about as wide as a roll of toilet paper. Hopefully I'll have it apart soon

This is correct--when the unit is taken down- the converter is taken off and the front pump is removed-the hub of the converter is checked for wear and IF grooved or worn undersized must be replaced. The pump is taken apart and the old seal and bushing removed and replaced. The outer o-ring same. The pump is realigned -tightened- and put on dowels to be put back on the old trans for line-up. The inside and outside get a coat of oil and watched to make sure the outer o-ring didn't get bound on the way in.
Another black oil- high milage unit- you may want to look for another trans or a rebuilt one.
Old 04-16-2011, 12:19 PM
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Originally Posted by crystalion
This is correct--when the unit is taken down- the converter is taken off and the front pump is removed-the hub of the converter is checked for wear and IF grooved or worn undersized must be replaced. The pump is taken apart and the old seal and bushing removed and replaced. The outer o-ring same. The pump is realigned -tightened- and put on dowels to be put back on the old trans for line-up. The inside and outside get a coat of oil and watched to make sure the outer o-ring didn't get bound on the way in.
Another black oil- high milage unit- you may want to look for another trans or a rebuilt one.


ill be doing it today and ill have pics for all to see
Old 04-16-2011, 12:25 PM
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Originally Posted by lolz_jeep
ill be doing it today and ill have pics for all to see

Can't wait to see -em


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