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Vacuum Line Question

This is a discussion on Vacuum Line Question within the External Engine forums, part of the LSx Technical Help Section category; I am putting my intake back on after replacing the knock sensors. Besides the AIR system, what else connects to ...

  1. #1
    Experienced Old Fart jfl330's Avatar
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    Vacuum Line Question

    I am putting my intake back on after replacing the knock sensors. Besides the AIR system, what else connects to that port? I would like to just cap it off on the back of the manifold now as it is easy to get to.

    Jon

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    Spaz is My Mentor SMWS6TA's Avatar
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    Air Vacuum Hose *, Break booster and HVAC

    The HVAC is the hard small plastic line and it connects to the bottom port.



    You need all of it and will need to connect it all back. unless you don't want breaks or AC?

    * - this is what alldatadiy is calling it.

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    Senior Member Z28_Driver's Avatar
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    Quote Originally Posted by SMWS6TA View Post
    Air Vacuum Hose *, Break booster and HVAC

    The HVAC is the hard small plastic line and it connects to the bottom port.



    You need all of it and will need to connect it all back. unless you don't want breaks or AC?

    * - this is what alldatadiy is calling it.
    that covers it well. no ac sucks. brakes just slow you down anyway

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    Experienced Old Fart jfl330's Avatar
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    Well I guess I have to provide for the HVAC line, this is Florida, it's 10,000 degrees out!

    But I will kill the AIR System line now instead of going back in later.

    Thanks!

    Jon

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    Senior Member Z28_Driver's Avatar
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    Quote Originally Posted by jfl330 View Post
    Well I guess I have to provide for the HVAC line, this is Florida, it's 10,000 degrees out!

    But I will kill the AIR System line now instead of going back in later.

    Thanks!

    Jon
    Good man. The AIR system just clutters the engine bay anyway.

  6. #6
    Spaz is My Mentor SMWS6TA's Avatar
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    So I understand this straight....

    The 01'-02' has no egr, but still has the air pump system?

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    Senior Member JayTA98's Avatar
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    If you eliminate the AIR just remove the T on the back of the intake and just connect the small line for the HVAC. Is the small tubing going to the passenger side firewall area.

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    Senior Member JayTA98's Avatar
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    Quote Originally Posted by SMWS6TA View Post
    So I understand this straight....

    The 01'-02' has no egr, but still has the air pump system?
    that's what im getting.

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    Senior Member Z28_Driver's Avatar
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    Quote Originally Posted by SMWS6TA View Post
    So I understand this straight....

    The 01'-02' has no egr, but still has the air pump system?
    From the factory they have the AIR pump and all the tubing that goes with it.

  10. #10
    Experienced Old Fart jfl330's Avatar
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    Quote Originally Posted by Z28_Driver View Post
    From the factory they have the AIR pump and all the tubing that goes with it.
    Not anymore, nifty pile crap on the garage floor now!

    Jon

  11. #11
    Experienced Old Fart jfl330's Avatar
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    Quote Originally Posted by Z28_Driver View Post
    From the factory they have the AIR pump and all the tubing that goes with it.
    Cam change in the 01' & 02' allowed the egr to be eliminated.

    Jon

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    Senior Member Z28_Driver's Avatar
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    Quote Originally Posted by jfl330 View Post
    Cam change in the 01' & 02' allowed the egr to be eliminated.

    Jon
    Correct.
    Always best to remove dead weight anyway.

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    Mustang Eater Ls_won's Avatar
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  14. #14
    Senior Member JoshuaGrooms83's Avatar
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    hey, quick question, if the vaccum tube that connects to the MAP is damaged (cracked by an idiot installing an LS6 manifold...) will this cause weird running conditions like surgin idling and stumbling when punched at WOT?

  15. #15
    Spaz is My Mentor SMWS6TA's Avatar
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    I want to say yes because it is an opening in the vacuum. You can try to get a similar size tubing and try to make a fix.

  16. #16
    Senior Member JoshuaGrooms83's Avatar
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    yeah, im looking into it. my cars been acting funny and i want it fixed

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