Bronco L6-300 4.9L VIN Y 1-bbl (1983)
Bowl Vent Valve: Testing and Inspection
Vacuum Bowl Vent Valve
1.
Ensure that air flows between carburetor port and canister port when no vacuum is applied to vacuum signal nipple.
2.
Apply vacuum to vacuum signal nipple and ensure that air does not flow between carburetor port and canister port.
