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Thread: 89 YJ Wiring Diagram for Transfer Case Vacuum Hoses

  1. #1
    Registered
    Join Date
    Nov 2001
    Location
    CT, USA
    Posts
    342

    Post 89 YJ Wiring Diagram for Transfer Case Vacuum Hoses

    A friend of mine just replaced his transfer case on his 89 YJ. When doing this, he could not figure out what all the vacuum hoses connected to. He is unsure of which hose goes to where. I thought i would be of help by letting him look at my 98 TJ, but everything is different. I was wondering if anyone has a diagram that i could see to figure out which hoses go to where. Thank you very much.

    noah

  2. #2

    Post

    I don't know if this will help, but this is what my friend sent me when I had a problem with the vacuum system.


    ok

    from the t-case...

    4 hoses
    -red, blue, green, yellow

    red goes to the front and is located under the vacuum
    canister it runs to a one way plug(nipple thingie) it
    then goes to a black line which attaches to the vacuum
    line assmbly behind the valve cover or it will plug
    into the manifold somewhere

    blue is not hooked up to anything but a nipple

    green and yellow run all the way to the axle

    now backwards from the axle....

    the vacumm thingie on the axle has 4 lines
    two yellow one black and one green

    the green is from the back and one yellow
    the extra yellow came from a black turning into a
    yellow with one of those one way valves connecting
    them the other black and the black connecting to the
    yellow both run to the canister(vaccuum thingie)


    ------------------
    Kerwin55@aol.com
    1989 YJ 1999 XJ
    <><

  3. #3
    Registered
    Join Date
    Jun 2001
    Location
    nc
    Posts
    248

    Cool

    Sent you a diagram someone had sent me

    ------------------
    1998 Grand 4.0 bone stock grocery getter and 1988 Wrangler 4.2L, 2000 AX15 finally installed and running. I am getting paid to live in Hawaii and rubbin it in.
    1998 Grand 4.0 bone stock grocery getter(totaled) and 1988 Wrangler 4.2L, 2000 AX15 finally installed and running(sadly sold). 1996 Cherokee. 2002 Chevy 2500HD4x4. 1970 Chevy 1/2 ton SWB.

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