EGR Control Solenoid Valve Inspection

EGR And Purge Control Solenoid Locations:

1. Disconnect the yellow/green striped hose from the solenoid valve and connect a hand vacuum pump to the fitting.
2. Disconnect the electrical connector.

EGR Voltage Test:

3. Apply battery Voltage to the electrical connectors as shown.
4. Apply vacuum to the solenoid with the pump and note the results.
a. Vacuum should hold when Voltage is applied.
b. Vacuum should NOT hold when NO Voltage is applied.

EGR Resistance Test:

5. Using an ohm meter check the resistance across the solenoid terminals.

Resistance:
36 - 44 Ohms @ 68° F.

6. Replace the solenoid if it fails the above step.