Fuel Tank: Description and Operation

FUEL TANK AND LINES

The fuel system consists of:
- the standard fuel tank.
- a fuel tank filler pipe which contains a restrictor plate to permit only unleaded fuel to be pumped into the fuel tank.
- a fuel tank filler pipe assembly that cannot be modified in any way. The fuel tank filler pipe is serviced only by replacement with a new filler pipe assembly.
- a 1/8 turn fuel tank filler cap.
- a fuel filter providing filtration to protect the fuel injectors.
- fuel lines.
- a top-mount, bottom-sense fuel delivery module containing:
- the electric fuel pump, which provides pressurized fuel to the engine.
- the fuel level sensor.
- an inlet filter.
- a check valve, which maintains system pressure after the pump is shut off.

The fuel pump is controlled by powertrain control module (PCM). Electrical power to the pump is provided through the inertia fuel shut off (IFS) switch located in the left side B-pillar trim panel.