Fuel Pump: Description and Operation

The fuel pump and sender assembly provides pressurized fuel to the engine and contains:
- a top flange with a bottom-mounted fuel module and integrated fuel level sensor.
- an inlet filter.
- a check valve which maintains system pressure after the pump is shut off.
- a pressure relief valve for overpressure protection in the event of restricted flow.

The fuel pump is controlled by an electronic fuel pump driver module which is enabled by the Powertrain Control Module (PCM). Electrical power to the fuel pump is provided through the Inertia Fuel Shutoff (IFS) switch, which is located in the luggage compartment.