EGR Control Solenoid: Testing and Inspection

California Model Vehicles Only

1. Disconnect the vacuum hose(s) from the solenoid valve.

2. Disconnect the electrical harness connector from the solenoid valve.

EGR Control Solenoid Valve Vacuum Test:

3. Connect a hand vacuum pump to the vacuum hose nipple.

4. Connect jumper leads to the solenoid terminals.

EGR Control Solenoid Valve Voltage Test:

5. While appling vacuum to the solenoid, apply battery voltage directly to the solenoid terminals.
Vacuum should HOLD.

6. Discontinue voltage.
Vacuum should LEAK.

EGR Control Solenoid Valve Resistance Check:

7. Measure the resistance between the terminals of the solenoid valve.
Refer to SPECIFICATIONS/ELECTRICAL