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.
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.
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.