EGR Control Solenoid: Testing and Inspection
1. Disconnect the green striped hose from the solenoid valve and connect a hand vacuum pump to the fitting.2. Disconnect the electrical connector.
3. Apply battery voltage to the electrical connectors as shown.
4. Apply vacuum to the solenoid with a pump and note the results.
Vacuum should hold when voltage is applied.
Vacuum should NOT hold when voltage is removed.
EGR Resistance Test:
5. Using an ohm meter check the resistance across the solenoid terminals.
Resistance: 36 - 44 ohms @ 20°C (68°F)