Refueling Control Valve: Testing and Inspection

REFUELING CONTROL VALVE
Check refueling control valve as follows:
1. Remove fuel filler cap.
2. Check air continuity between hose ends (A) and (B).
Blow air into the hose end (B). Air should flow freely into the fuel tank.
3. Blow air into hose end (A) and check there is no leakage.
4. Apply pressure to both hose ends (A) and (B) [20 kPa (150 mmHg, 5.91 inHg)] using a pressure pump and a suitable 3-way connector. And check there is no leakage.
If NG, replace refueling control valve with fuel tank.