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Home >> Ford >> 2004 >> Excursion 6.8 S, RWD >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Auxiliary Emission Control Systems >> Evaporative Emissions System - Excursion & F250-F550 Super Duty >> Diagnosis And Testing >> Evaporative Emissions >> Principles of Operation >> Fuel Filler Pipe Check Valve

Fuel Filler Pipe Check Valve

The fuel filler pipe check valve is an integral part of the fuel tank or the fuel filler pipe. It is intended to prevent liquid fuel from re-entering the fuel filler pipe from the fuel tank on refueling or rollover conditions.

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