72 skylark A/C vacuum lines came off selectorwhere do they reconnect?

Discussion in 'Wrenchin' Secrets' started by blue suncoupe, Aug 9, 2018 at 4:33 PM.

  1. blue suncoupe

    blue suncoupe Well-Known Member

    Finishing up restro on 72 skylark and need to know what ports the 4 vacuum lines hook into for the A/C selector switch blue, yellow, green,& i think pink. I have blue on top port yellow just below the blue. green at bottom right and pink at bottom on the left.
     
    Last edited: Aug 9, 2018 at 4:39 PM
  2. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    This is why you need a Buick Chassis Manual.:)

    ACSwitchDetail.jpg
     
  3. blue suncoupe

    blue suncoupe Well-Known Member

    Thx, I have chassis, service and assembly manuals but it is difficut to distinguish connection at selector switch by looking at harness. Schematic would be helpful.
     
  4. 12lives

    12lives Engage! - Jean-Luc Picard

    If you look at the section on how the system works there are (color?) schematics that show the hose colors and which are active for each selection. That might help.
     

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