EGR Solenoid Inspection

EGR Control Solenoid Valve Location:

1. Disconnect the vacuum hoses (yellow stripe, green stripe and white stripe) from the solenoid valve.
2. Disconnect the harness connector from the solenoid.





3. Connect a hand vacuum pump to the nipple to which the white striped vacuum hose was connected.





4. Apply a vacuum and observe vacuum gauge while applying battery voltage across the solenoid terminals with jumper wires.

^ Battery voltage not applied and nipple B open, vacuum is maintained.
^ Battery voltage applied and nipple B open, vacuum leaks.
^ Battery voltage applied and nipple B closed, vacuum is maintained.

5. Measure the resistance between the solenoid terminals. The acceptable resistance range is 36-44 ohms @ 20° C (68° F).
6. If the solenoid failed any test, replace solenoid.