Crown Victoria V8-281 4.6L SFI (1998)
Fillpipe Restrictor: Description and Operation
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The restricted opening of the fuel tank filler pipe allows only a non-leaded fuel nozzle to be inserted. The restrictor consists of a narrow opening in
the fuel tank filler pipe covered by a spring loaded steel trap door. Leaded fuel nozzles will not fit through the narrow opening.
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Restricted fuel tank filler pipes are manufactured as an assembly, and must be serviced by removal and replacement with a new fuel tank filler pipe
and a new fuel filler grommet.
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Fuel tank filler pipes are not to be modified in any way.