Fuel System - General Information

Fuel System - General Information

Overview

Fuel System

The fuel system:

- is a 2-speed MRFS (Mechanical Returnless Fuel System) with sequential MFI (Multi-Port Fuel Injection).

- uses a dual-container (saddle-type) fuel tank.

- has a fuel level sensor assembly.

- has a FP (Fuel Pump) module that supplies fuel under pressure to the fuel rail.

- has a lifetime fuel filter (serviced as part of the FP (Fuel Pump) module).

- has an Easy Fuel(TM) fuel tank filler pipe assembly, which cannot be modified in any way and is serviced only by the installation of a new fuel tank filler pipe assembly.

- has a supplemental refueling adapter located in the spare tire compartment.

- has a FP (Fuel Pump) module that operates on 10 or 12 volts depending on load, that supplies fuel under pressure to the fuel rail.

- has a FP (Fuel Pump) control module located behind the RH (Right Hand) C-pillar trim panel.

- has fuel tubes (liquid and vapor) along with brake tubes mounted on the underside of the vehicle in a bundle.

- has a FTP (Fuel Tank Pressure) sensor (part of the fuel vapor tube assembly).

- uses separately controlled fuel injectors for each cylinder. The fuel injectors are mounted to the intake manifold and are supplied with pressurized fuel from the FP (Fuel Pump) module to the fuel rail.

- fuel rail pressure is controlled by the electronic FP (Fuel Pump) module which is enabled by the PCM (Powertrain Control Module).

- has a serviceable fuel level sender mounted on the FP (Fuel Pump) module.

- has a serviceable fuel level sender mounted on the fuel level sensor assembly.

FP (Fuel Pump) Shut-off Feature

In the event of a moderate to severe collision, the vehicle is equipped with a FP (Fuel Pump) shut-off feature that is initiated by the event notification signal.

Should the vehicle shut off after a collision due to this feature, the vehicle may be restarted by first turning the ignition to the OFF position and then turning the ignition to the ON position. In some instances the vehicle may not start the first time and may take one additional ignition cycle.