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Vacuum ? Lines

Discussion in 'Turbo Tech Questions' started by 5psprinter, May 4, 2021.

  1. 5psprinter

    Joined:
    Nov 13, 2020
    On the intake side of the 2.3 Ford out of a turbo coupe.
    There is a fittings with a hose attached to a plastic manifold that if it wasn't after the turbo I would call vacuum lines. Is there vacuum there or is that boost pressure?
     
    5psprinter, May 4, 2021
    #1

  2. Disney Lincoln

    Joined:
    Feb 14, 2003
    Some are vacuum with check valves. I think it also has a some coolant port on the intake with vacuum lines that is a thermally controlled switch.
     
    Disney Lincoln, May 4, 2021
    #2

  3. 5psprinter

    Joined:
    Nov 13, 2020
     
    5psprinter, May 5, 2021
    #3

  4. 5psprinter

    Joined:
    Nov 13, 2020
    So there is vacuum on that side of the turbo ?
     
    5psprinter, May 5, 2021
    #4

  5. power band

    Joined:
    Nov 25, 2012
    Some are vacuum with check valves.

    Not sure what line is to/from but it's common to use off-boost intake vacuum for distrib' vac' advance with a one-way check valve closing on-boost and eliminating the vac. advance . Vac line may also go to automatic tranny pressure modulator again with a one-way check valve.
     
    power band, May 5, 2021
    #5

  6. Disney Lincoln

    Joined:
    Feb 14, 2003
    Where else would it get vacuum? When the throttle blade is shut, there is vacuum.
     
    Disney Lincoln, May 5, 2021
    #6
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