91 XJ front Diff. Vaccume line
04-20-2012, 01:37 AM
#1
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Year: 1991
Model: Cherokee (XJ)
Engine: 4.0 6cyl.
91 XJ front Diff. Vaccume line
I crawled under my 91 XJ and noticed a vaccume line comming off the top of my front diff. and it has rotted/cracked almost in two. it runs to what looks like a plastic vaccume line on the drivers side firewall....what is this line for ? and is it a vaccume line ? or is it a vent ?
Thanks
Thanks
04-20-2012, 10:00 AM
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Year: 1987
Model: Cherokee
Engine: I6
Some Jeeps came with a vacuum disconnect on the front axle. I don't know what years had this option off the top of my head so you may not have it. You describe it coming off the top of the diff and that would be where the vent line is. The vacuum disconnect has a few vac lines going into a black pancake shaped diaphragm on the pass side axle tube.
Looks like this:
Looks like this:
04-20-2012, 07:58 PM
#5
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Year: 1993
Model: Cherokee
Engine: 4.0
Some Jeeps came with a vacuum disconnect on the front axle. I don't know what years had this option off the top of my head so you may not have it. You describe it coming off the top of the diff and that would be where the vent line is. The vacuum disconnect has a few vac lines going into a black pancake shaped diaphragm on the pass side axle tube.
Looks like this:
Looks like this:
04-21-2012, 08:00 AM
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Year: 1993
Model: Cherokee
Engine: 4.0
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04-21-2012, 09:31 AM
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Year: 1989
Model: Cherokee
Engine: 4.0L Rebuilt Renix "Low Output" haha
Originally Posted by XJdryva
Ok let me reword that. 90 is the last year they had that meaning 90 has it and 91 doesn't
04-21-2012, 09:47 AM
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Year: 1989
Model: Cherokee
Engine: 4.0L Rebuilt Renix "Low Output" haha
Originally Posted by Trev1006
Hp30 axles could have had that up untill 95. I have a 95 axle with it on it.
04-21-2012, 12:07 PM
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Year: 1993
Model: Cherokee
Engine: 4.0
XJ's as in Jeep Cherokees stopped when chrysler took over ownership. If you have one swapped out from something else then good for you but 90 models were the last to come stock with front end dixcos.
04-21-2012, 12:13 PM
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Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
Originally Posted by Trev1006
Hp30 axles could have had that up untill 95. I have a 95 axle with it on it.
04-21-2012, 12:20 PM
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Year: 1989
Model: Cherokee
Engine: Inline 6, 4.ol
Point is, sounds like is just the vent for the front diff. Assuming its a vacuum looking line coming off the top of the differential. Just go buy replacement line from napa, they have it in bulk, then get new hose clamps if you need to. While your replacing it, consider running the vent line near the hood, that way if you cross a deep puddle or a water crossing you wont get water in your differential.