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front axle vacuum lines

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Old 10-30-2012, 12:56 PM
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Default front axle vacuum lines

I am having a issue with my 4wd not working I looked under my jeep this morning in the snow and the vac lines werent attached. I was wondering if anyone has pictures of how these are supposed to hook up?
Old 10-30-2012, 06:11 PM
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Theres a plug that just connects to the diaphragm ....
Old 10-30-2012, 06:30 PM
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Unless it isnt there, i have been lucky enough to avoid the cad systems so i couldnt tell you which goes where, sorry
Old 10-30-2012, 07:16 PM
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Thats no problem I think its fixed now I would not suggest putting screw driver bits in vacuum lines to plug them..
Old 10-30-2012, 07:18 PM
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Originally Posted by brucemardenjr
Thats no problem I think its fixed now I would not suggest putting screw driver bits in vacuum lines to plug them..
So you just plug it back on ?
Old 10-30-2012, 07:31 PM
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when I bought my 90, it was missing the adapter piece (vac lines to axle .. hoses just hanging)

I went to a junkyard & looked at 1, used rubber hoses as links, 4x4 worked fine after

I sold mine .. so cant tell you what color hose goes where .. JY closeby ?

hopefully someone on here will go look at theirs for you .. its very easy to hook up.

i bought a JY adapter, but it didnt fit too good, bulk rubber hose did the trick .. it worked better after i gently sprayed cleaner into vac lines & diaphargm ports, they were plugged a bit from dirt .. that dirt wouldnt allow 4x4 to kick in at 10k elevation .. good luck, its easy
Old 10-30-2012, 07:42 PM
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Also another question theres a trans switch what does the switch do
Old 10-30-2012, 07:46 PM
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The adapter was there the people i got it from plugged the vac lines once i unplugged them and re attached them to the vac unit it worked. Now i just have to figure out all the other little stuff.
Old 10-30-2012, 07:47 PM
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A great day to climb under the jeep in fresh snow.
Old 10-30-2012, 07:54 PM
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Trans switch the speedometer?

I had a small ma and pa shop take the CAD system out of my YJ when I had it. I think they put XJ shafts in there. Never worried about that again. I had it pop off before. Got stuck in sand because of it. Worth looking into.
Old 10-30-2012, 08:46 PM
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When I switch my axles out this spring that whole setup is hopefully going away
Old 10-30-2012, 08:46 PM
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It says trans power
Old 10-31-2012, 07:00 AM
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Originally Posted by brucemardenjr
I am having a issue with my 4wd not working I looked under my jeep this morning in the snow and the vac lines werent attached. I was wondering if anyone has pictures of how these are supposed to hook up?

Just do this and be done with it:

https://www.cherokeeforum.com/f51/fr...ss-91-a-38629/
Old 10-31-2012, 07:01 AM
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Originally Posted by brucemardenjr
It says trans power
The Power/Comfort switch has nothing to do with your 4WD system BTW.
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