Fuel Tank and Lines

FUEL TANK AND LINES

WARNING:
- Do not smoke, carry lighted tobacco or have an open flame of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.
- Do not carry personal electronic devices such as cell phones, pagers or audio equipment of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.

The fuel tank and lines consists of the:
- fuel tank.
- fuel tank filler pipe.
- fuel tank filler cap.
- fuel pump (FP) module.
- fuel level sensor assembly (saddle-tank only).
- fuel level sender (mounted on FP and, if equipped, the fuel level sensor assembly).
- fuel tubes.
- fuel tank pressure (FTP) sensor.
- inertia fuel shutoff (IFS) switch.

The vehicle:
- uses a mechanical returnless fuel system.
- uses either a single container (L-shaped) or a dual-container (saddle-type) fuel tank.
- has a fuel level sensor assembly (saddle-tank only).
- has a FP module that supplies fuel under pressure to the fuel rail.
- has a fuel filter (part of the FP module).
- has fuel tubes (liquid and vapor) along with brake tubes mounted on the underside of the vehicle in a bundle.
- has a FTP sensor (part of the fuel vapor tube assembly).
- fuel injection rail pressure is controlled by the electronic FP module which is enabled by the PCM.
- has a 1/4 turn vented type fuel tank filler cap.
- has a fuel tank filler pipe assembly, which cannot be modified in any way and is serviced only by installation of a new fuel tank filler pipe assembly.
- has an IFS switch located in the passenger side footwell that shuts off fuel in the event of a collision.
- has a fuel level vent valve (part of the FP module on Taurus X federal emission vehicles, part of the fuel tank on all other vehicles).
- has a serviceable fuel level sender mounted on the FP module.
- has a serviceable fuel level sender mounted on the fuel level sensor assembly (saddle-tank only).

The FP is controlled by the PCM. Electrical power to the FP is provided through the IFS switch.