EVAP Vent Control Valve Inspection

1. Remove the EVAP vent control valve from the EVAP canister.





2. Apply battery voltage to the valve and make sure the air passage closes (see Figure 2).

NOTE:
The valve must function (click) on the first application of battery voltage.

3. Disconnect the battery voltage and make sure the air passage opens again (does not stick closed).

4. Look inside the valve air passage and make sure there is no corrosion or rust on the metal shaft.

5. Replace the valve if it fails one or more of these checks.