Cutlass Salon V8-350 5.7L DSL (1985)
Thermostatic Air Cleaner Vacuum Switch: Description and Operation
This switch acts as a vacuum connection for the thermac air cleaner control and a thermal control for the secondary vacuum break diaphragm. Ports 1
and 2 of this switch are always connected and port 3 is sealed when cold and connected to the other ports when warm.
