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Thread: What vacuum line is this?

  1. #1
    Hybrid booster Turbo Mopar Contributor
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    What vacuum line is this?

    I think it goes to the factory boost gauge but please confirm. The car is an 89 CSX.





    Thanks again guys.

    Jake

  2. #2

    Re: What vacuum line is this?

    I believe that actually feeds the inside of the car. It runs the boost gauge as well as the HVAC stuff.

  3. #3
    turbo addict
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    Re: What vacuum line is this?

    No the Hvac stuff is a seperate system under the heater lines into the car. That's for the boost gauge.

  4. #4

    Re: What vacuum line is this?

    So there is another line for the vacuum actuators of the hvac system?

  5. #5
    Hybrid booster Turbo Mopar Contributor
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    Re: What vacuum line is this?

    yes the hvac vac nipple is where the heater core

  6. #6

    Re: What vacuum line is this?

    Then where does it hook to? No one ever mentions the HVAC stuff when talking about connecting a vacuum block, and I never specifically hooked up the HVAC stuff when I installed mine.

  7. #7
    boostaholic
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    Re: What vacuum line is this?

    the HVACruns off the brake booster "TEE" on the booster it self...that is indeed the boost gauge line...mabye orginal design of that perticular area was designed for right hand drive...

    i no longer run the gauge or hose and that got left unpluged.... i ran a new one into the driverside for my auto meter boost gauge...

    vac block really only needs... a boost gauge port, MAP port, Fuel pressure and boost control port...( unless u have to run emission stuff, ur on ur own here)....i run the BOV off the back of the 1piece intake port, next to the booster port.

    heres an easy, i call it a "VAC manifold" rather a block but same concept, just easy to make....and relativity cheap, unless ur a machinist



    heres what it looks like on the car



    this is one w/o the dual g- valves...


  8. #8

    Re: What vacuum line is this?

    Ok, I wasn't doubting, just curious where the HVAC setup got its vacuum

  9. #9
    Hybrid booster Turbo Mopar Contributor
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    Re: What vacuum line is this?

    22Shelby! Thanks. That explanation helps a ton.

    Jake

  10. #10
    Garrett booster
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    Re: What vacuum line is this?

    Here is a diagram I made for myself when I tore everything out and started from scratch:



    TII stock set-up, showing everything in it's general location. HVAC and cruise pull off the booster. You can also run cruise off the turbo nipple and tee into the booster line, etc.

  11. #11
    turbo addict
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    Re: What vacuum line is this?

    Quote Originally Posted by 6daytonas View Post
    Here is a diagram I made for myself when I tore everything out and started from scratch:



    TII stock set-up, showing everything in it's general location. HVAC and cruise pull off the booster. You can also run cruise off the turbo nipple and tee into the booster line, etc.
    man that is awesome! something Chrysler never did for these cars even in the factory manual's
    i changed it up to how i ran mine


  12. #12
    Super Moderator Turbo Mopar Staff 135sohc's Avatar
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    Re: What vacuum line is this?

    Quote Originally Posted by Johnmesich View Post
    something Chrysler never did for these cars even in the factory manual's
    Look in the emissions section. They are in there, just not so simple in layout.

  13. #13
    turbo addict
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    Re: What vacuum line is this?

    really the vac diagrams are simple to read if you just take a bit and look at them. They're in the FSM's like 135sohc said and on the dodge garage too.

  14. #14
    turbo addict
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    Re: What vacuum line is this?

    Quote Originally Posted by 135sohc View Post
    Look in the emissions section. They are in there, just not so simple in layout.
    each one is less then half a page and everything is so small
    and not easily readable like this one is

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