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Unread 08-17-2002, 10:48 AM   #1
CruzNlife1
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Front End Vacuum

Hmm, you guys are mentioning some sort of vacuum hose going to the front end so it disengages, well i have no hose, just a hole on the top right with nothing in it, and oil leaking out of it, tranny shop guy told me it was a breather plug missing and i have to get a new one from the dealership, could this be where the vacuum line goes ????, if your under the jeep its on the top passenger side, it leaks fluid slowly, than it has never disengaged, the front wheels are always "Locked In"

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1989 Jeep Cherokee XJ LIMITED....2door.... Auto, NP242 4x4...

1996 Ranger Supercab....

1991 Mustang LX....

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Unread 08-17-2002, 11:23 AM   #2
CruzNlife1
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??????? Or does somebody possibly have a schematic type something or a shot out of a workshop manual ????
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1989 Jeep Cherokee XJ LIMITED....2door.... Auto, NP242 4x4...

1996 Ranger Supercab....

1991 Mustang LX....

VERY SOON TO BE A BRAND NEW TJ OWNER, TRYING TO LEARN AS MUCH AS POSSIBLE RIGHT NOW !!
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Unread 08-17-2002, 02:31 PM   #3
85XJ
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If your talkin about the hole on the top of your diff, that is a breather/overflow hose for your gear oil. That has nothing to do with front end engaging to 4wheel. It just allows air to escape and overflow gear oil to go. Just stick a 5/8" hose to the diff and run it about 3feet up under the hood.
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Unread 08-17-2002, 02:32 PM   #4
pair8hd
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What year XJ? They stopped making the vacuum disco axle in 1990.
That is your differential vent, and it needs a tube that goes to the engine department to keep dirt, water and other foreign particles from entering your differential housing.
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Unread 08-17-2002, 11:10 PM   #5
CruzNlife1
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its an 89
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1989 Jeep Cherokee XJ LIMITED....2door.... Auto, NP242 4x4...

1996 Ranger Supercab....

1991 Mustang LX....

VERY SOON TO BE A BRAND NEW TJ OWNER, TRYING TO LEARN AS MUCH AS POSSIBLE RIGHT NOW !!
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Unread 08-18-2002, 09:06 PM   #6
cladinshadow
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Rock on dude, I swapped in an '89 dana 30 to my front. 85 XJ's right, run a vacuum hose up to your engine. It'll keep the crud out and let it breathe. If you want true part-time 4wd, you need to install hubs.
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