EGR Solenoid Test

NOTE:
EGR system must pass CONTROL SYSTEM TEST and GAS FLOW TEST to pass FUNCTIONAL TEST.

SOLENOID TEST

1. Disconnect electrical connector from solenoid valve.
2. Remove vacuum hoses. With a solenoid wire disconnected air should flow from the vacuum port through the vent port. Energize the solenoid, air should flow through both vacuum ports. If either test fails, the solenoid valve must be replaced.
3. Connect either solenoid terminal to a ground and the other one to the battery positive terminal, then listen for clicking noise from solenoid as it is connected to battery positive terminal. If the solenoid does not click, it is defective and needs to be replaced.