Fill Valve and Fill Line

The fill valve receives fuel from the fill nozzle at the CNG dispensing station. The fill valve seals to the dispensing nozzle with an O-ring. Before re-fueling this O-ring must be inspected and replaced if missing or damaged. The fill valve contains an internal filter element designed to trap contaminants. This filter must be periodically inspected and cleaned. Refer to Fill Valve Filter Replacement for filter inspection and cleaning procedures. The fill valve mounting location varies with vehicle model. Refer to the supplement for fill valve location and fuel tank filling procedures. The fill line is constructed of flexible, steel-braided hose protected by a plastic cover. The fill line connects the fill valve to the fuel tank and is sealed to the fuel tank with an O-ring.