Leak Detection Valve: Testing and Inspection

Tank Pressure Control Valve

Inspection





1) Air should pass through valve smoothly from black side of tank pressure control valve to orange side when blown hard.





2) From orange side, even when blown softly, air should come out of black side.
3) If air doesn't pass through valve in step 2) or hard blow is required in step 3), replace tank pressure control valve.

WARNING: DO NOT SUCK air through tank pressure control valve. Fuel vapor inside the valve is harmful.