Diesel Data: Automotive Repair

EGR Solenoid

EGR Solenoid Location:






1. Disconnect the yellow striped vacuum hose and the green striped vacuum hose from the solenoid valve.
2. Disconnect the electrical harness connector.
3. Connect a hand vacuum pump to the nipple which the green striped hose was connected to.
4. Connect jumper leads to the solenoid terminals.

EGR Control Solenoid Valve Voltage Test:






5. While applying 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.