F 150 2WD Pickup V8-351 5.8L (1986)
Bowl Vent Valve: Testing and Inspection
Carburetor Fuel Bowl Thermal Vent Valve
At 90°F and below, the vent valve is fully closed and at 120°F and above, the vent valve is fully open.
Bowl Vent Valve: Testing and Inspection
Carburetor Fuel Bowl Thermal Vent Valve
At 90°F and below, the vent valve is fully closed and at 120°F and above, the vent valve is fully open.