Somerset V6-181 3.0L (1986)
Fig. 28 Choke Break Thermal Vacuum Switch (CB-TVS). 3 port type
3 Port Type
When engine coolant temperature is below the switching point, vacuum should pass through ports 1 and 2, Fig. 28. When engine coolant temperature
is above the switching point, vacuum should pass through ports 1 and 3, Fig. 28.
