Pressure Release Valve Solenoid: Testing and Inspection
PROCEDURE1. Disconnect the [1][2]EVAP Tank Pressure Control Solenoid vacuum valve electrical connector.
2. Using a DMM, measure the resistance of the [1][2]EVAP Tank Pressure Control Solenoid vacuum valve between both terminals. The resistance should be 28 to 36 ohms at 20°C (68°F).
3. Replace the [1][2]EVAP Tank Pressure Control Solenoid vacuum valve if the resistance is not 28 to 36 ohms at 20°C (68°F). If the resistance is within specification, proceed to step 3.
4. Disconnect the [1][2]EVAP Tank Pressure Control Solenoid vacuum valve vacuum hoses from the intake manifold and the vacuum pipe (from the Tank Pressure Control valve).
5. Blow air into the [1][2]EVAP Tank Pressure Control Solenoid vacuum valve vacuum hose that was disconnected from the vacuum pipe. Air should not pass through the EVAP Tank Pressure Control Solenoid vacuum valve and exit from the intake manifold hose.
6. Connect 12 volts DC to the [1][2]EVAP Tank Pressure Control Solenoid vacuum valve terminals.
7. Blow air into the [1][2]EVAP Tank Pressure Control Solenoid vacuum valve vacuum hose that was disconnected from the vacuum pipe. Air should pass through the EVAP Tank Pressure Control Solenoid vacuum valve and exit from the intake manifold hose.
8. Replace the [1][2]EVAP Tank Pressure Control Solenoid vacuum valve, if the EVAP Tank Pressure Control Solenoid vacuum valve failed this inspection.
9. Reconnect the [1][2]EVAP Tank Pressure Control Solenoid vacuum valve vacuum hoses and electrical connector.