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Old 08-19-2014, 08:51 PM   #1
Matroshka's Avatar
Join Date: Jul 2014
Location: Raleigh, NC
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What is this hose?

I've got this hose that attaches to the front diff and runs up the frame almost to the engine but it's cut off and zip tied. Doesn't connect to anything.

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Old 08-19-2014, 08:59 PM   #2
Join Date: Apr 2010
Location: Phx, AZ
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That's a vent for the diff. Should have a little plastic cover on the end of hose

Keep it tied up and as high as possible so no water or debris gets into it

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Old 08-19-2014, 09:01 PM   #3
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Join Date: Jul 2014
Location: Raleigh, NC
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I need to redo the zip tie then. It's loose, but it's pretty high on the frame. I was worried it was something important that had been disconnected, although the engine runs great.
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Old 08-19-2014, 10:30 PM   #4
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Its original routing location is up past the frame to the radiator support. It got mounted to the drivers side radiator bracket up near the headlight.

The frame isn't really high enough if you encounter any kind of water. Even running in the rain can cause it to receive moisture, and that isn't a good thing when it comes to gear oil.

Might be a good time to drop the gear oil out of the front end and do a lube change. At least then you would be sure that it doesn't have any water in it. And make sure the end of that vent tube is mounted up as high as possible, out of harms way, with a vent tube end in it.
'87 YJ, 4.2L built and bored, 8.5" of lift, 8.8 rear, AX15/NP 231, Tom Woods drive shafts, Flat fenders, 12,000LB winch, Custom bumpers, Rattle can paint job. Never completed...
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