E 450 V8-5.4L (2009)
Canister Vent Valve: Service and Repair
Fuel Vapor Vent Valve
NOTE: Midship tank shown, aft-of-axle similar.
Removal and Installation
WARNING: Always disconnect the battery ground cable at the battery when working on an evaporative emission (EVAP) system or
fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in
serious personal injury.
WARNING: Do not smoke, carry lighted tobacco or have an open flame of any type when working on or near any fuel-related component.
Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.
1. Remove the fuel tank.
2. NOTICE: The fuel vapor vent valve must be disengaged from the fuel tank before it can be removed. While pressing down, rotate the fuel
vapor vent valve counterclockwise to disengage from the fuel tank. Failure to do so can cause damage to the fuel vapor vent valve or the
fuel tank.
Press down and rotate the fuel vapor vent valves counterclockwise and remove from the fuel tank.
3. To install, reverse the removal procedure.
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Carry out the Evaporative Emission System Leak Test. For additional information, refer to Evaporative Emission System Leak Test See:
Testing and Inspection.
