AC and Heater Vacuum Line Layout
Note that the vacuum supply comes into the cabin
via the purple hose #3. If you do not have vacuum under the dash on the
purple hose, then you need to go back under the hood and find out why. You
can also use a Mitey-Mite under the dash to supply vacuum to the vacuum control
switch (#16 on the drawing) via the purple hose if you wish to confirm the
operation of the control head and correct routing of the air flow versus
selector position.
