post #1 of Old 12-31-2012, 12:57 PM Thread Starter
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Join Date: Sep 2012
Posts: 1
4wd vacuum hose

Lost my 4wd and thinking has to do with hose to port? Can't find a diagram for assistance for my 1990 Wrangler.

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post #2 of Old 01-01-2013, 11:40 PM
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1993 YJ Wrangler 
Join Date: Jun 2012
Location: Issaquah
Posts: 947
Are you talking about the vac actuator? It's located on the passenger side and goes up the block and connects to a vac line by the passenger side firewall. If you want you can lock the actuator manually. Search the forum for '4wd actuator override' and you will find a ton of articles about how to do it.
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post #3 of Old 01-02-2013, 08:38 PM
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1990 MJ Comanche 
Join Date: Oct 2009
Location: Prescott
Posts: 11,019
Here's a link. For an XJ but it's essentially the same setup.

If you own a Renix Jeep, you'll want to check this out.

An index to over 30 write-ups can be found in the link below

My Jeep Technical Photos
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