Air Injection Vacuum Control Solenoid Valve: Description and Operation

Solenoid Valve
The dual thermactor air control solenoid valve assembly consists of two normally closed solenoid vacuum valves (TAB and TAD), one controlling the thermactor air bypass valve and the other controlling thermactor diverter valve. Both are vented when de-energized and is sourced by the intake manifold vacuum reservoir and controlled by the EEC-IV system.