F 150 4WD V8-4.6L VIN 8 (2010)
Fuel Gauge Sender: Description and Operation
Fuel Pump (FP) Module
ENGINE CONTROL COMPONENTS
Fuel Pump (FP) Module
The FP module contains the fuel pump and sender assembly. The fuel pump is located inside the FP module reservoir and supplies fuel through the FP
module manifold to the engine and FP module jet pump. The jet pump continuously refills the reservoir with fuel, and a check valve located in the
manifold outlet maintains system pressure when the fuel pump is not energized. A flapper valve located in the bottom of the reservoir allows fuel to
enter the reservoir and prime the fuel pump during the initial fill.
Typical Electronic Returnless FP Module
Typical Mechanical Returnless FP Module