EV 6 - Check Rollover/Vent Valve Function

Rollover Vent Valve:

EV6 CHECK ROLLOVER/VENT VALVE FUNCTION

^ Check the rollover/vent valve for evidence of leakage.

^ Remove the rollover/vent valve.

^ Connect Rotunda Vacuum/Pressure Tester 059-00008 or equivalent, to the rollover/vent valve as shown for Test 1.

^ Hold the valve vertically.

^ Blow into port A and verify the valve opens at 7.0 kPa (1.0 psi) maximum.

^ Connect the tester as shown for Test 2.

^ Blow into port B and verify the valve opens at 4.9 kPa (0.7 psi) maximum.

^ Hold the valve upside down.

^ Blow into port A and verify that pressure is held.

^ Does the valve function properly?

YES -- Evaporative Emissions system is OK.

NO -- Replace the rollover/vent valve.