EGR Electronic Vacuum Regulator Solenoid: Testing and Inspection

1. Disconnect the vacuum hoses from the EGR vacuum regulator solenoid.

2. Lightly blow air into the EGR vacuum regulator solenoid and verify that air does not flow.

3. Disconnect the fuel charging wiring from the EGR vacuum regulator solenoid.

Escort/Tracer, Mustang, 3.8L Thunderbird/Cougar:

4. Apply battery voltage and a ground to the EGR vacuum regulator solenoid at the connector.

5. Lightly blow air into the EGR vacuum regulator solenoid and verify that air does flow through the EGR vacuum regulator solenoid.

6. If air does not blow through the EGR vacuum regulator solenoid, replace the EGR vacuum regulator solenoid.