Diesel Data: Automotive Repair

Evaporative Emission Purge Solenoid Check

NOTE: When disconnecting the vacuum hose, place an identification mark on it for proper re-connection.
1. Disconnect the vacuum hose from the solenoid valve.
2. Disconnect the harness connector.





3. Connect a hand vacuum pump to nipple (A) of the solenoid valve (refer to the illustration at left).
4. Check airtightness by applying a vacuum with Voltage applied directly from the battery to the purge control solenoid valve.








5. Measure the resistance between the terminals of the solenoid valve.

Standard value: 25 - 35 Ohms [at 20°C (68°F)]