Tank Pressure Control Valve-1 and -2

INSPECTION OF TANK PRESSURE CONTROL VALVE-1




1. Plug white nozzle and apply 26 kPa (20 cm Hg) vacuum to black nozzle. Check that vacuum is held at that level (there is no leakage) and vacuum gauge indicator returns to "0" slowly when plug is removed.
2. Plug black nozzle and apply 26 kPa (20 cm Hg) vacuum to white nozzle.
Check that vacuum gauge indicator returns to "0" faster than that in step 1. when plug is removed.
If malfunction is found in above steps, replace.

INSPECTION OF TANK PRESSURE CONTROL VALVE-2




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.

4. Plug orange nozzle and apply 26 kPa (20 cm Hg) vacuum to black nozzle. Check that vacuum is held at that level (there is no leakage).
If vacuum leaks, replace.