LeSabre V6-181 3.0L (1986)
Air Door Actuator / Motor: Description and Operation
With the exception of the electrically positioned bi-level (Air-Mix/Temperature) valve, the A/C mode valves are positioned by vacuum powered
actuators. Three logic inputs from the controller determine the state of the programmer's four vacuum solenoids. When a particular solenoid is energized,
vacuum is applied to its associated valve actuator.
