Air Injection Vacuum Control Solenoid Valve: Testing and Inspection

Dual Thermactor Air Control Solenoid Valve:

1. Determine the operation of each solenoid through use of a vacuum pump, a vacuum gauge, and jumper wires for energizing the solenoids coils.
2. Check the resistance of each solenoid at the coil terminals, the resistance should be between 51 and 108 ohms.
3. If resistance is not within these values, the solenoid should be replaced.