Fuel System
Fuel System
3.7L
The fuel system:
- is a 2-speed Mechanical Returnless Fuel System (MRFS) with sequential Multi-Port Fuel Injection (MFI).
- uses a dual-container (saddle-type) fuel tank.
- has a fuel level sensor assembly.
- has a Fuel Pump (FP) module that supplies fuel under pressure to the fuel rail.
- has a lifetime fuel filter (serviced as part of the FP module).
- has an Easy Fuel(TM) (capless) 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 module that operates on 10 or 12 volts depending on load, that supplies fuel under pressure to the fuel rail.
- has a FP control module located behind the RH upper quarter 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 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 module to the fuel rail.
- fuel rail pressure is controlled by the electronic FP module which is enabled by the PCM.
- has a serviceable fuel level sender mounted on the FP module.
- has a serviceable fuel level sender mounted on the fuel level sensor assembly.
3.5L Gasoline Turbocharged Direct Injection (GTDI)
The fuel system:
- is a 2-speed Mechanical Returnless Fuel System (MRFS) with Gasoline Turbocharged Direct Injection (GTDI).
- uses a dual-container (saddle-type) fuel tank.
- has a fuel level sensor assembly.
- has a FP module that operates on 10 or 12 volts depending on load, that supplies fuel under pressure to the high pressure FP.
- has a lifetime fuel filter (serviced as part of the FP module).
- has an Easy Fuel(TM) (capless) 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 fuel injection pump that supplies high pressure, low volume fuel to the fuel rails.
- has a FP control module located behind the RH upper quarter trim panel.
- has fuel tubes (liquid and vapor) along with brake tubes mounted on the underside of the vehicle in a bundle.
- has a high pressure fuel tube from the fuel injection pump to the fuel rails.
- has a Fuel Rail Pressure (FRP) sensor on the LH fuel rail.
- has a FTP sensor (part of the fuel vapor tube assembly).
- uses separately controlled fuel injectors for each cylinder. The fuel injectors are mounted directly into the head.
- fuel injectors are supplied with pressurized fuel from the fuel injection pump to the fuel rail.
- has a serviceable fuel level sender mounted on the FP module.
- has a serviceable fuel level sender mounted on the fuel level sensor assembly.
Fuel Pump (FP) Shut-off Feature
NOTE: Refer to the Description and Operation, Intelligent Access with Push Button Start in Antitheft and Alarm Systems to review the procedures for achieving the various ignition states (ignition OFF, ignition in ACCESSORY, ignition ON and ignition START) on vehicles with this feature.
In the event of a moderate to severe collision, the vehicle is equipped with a FP shut-off feature that is initiated by the event notification signal.
The event notification signal is a signal provided by the Restraints Control Module (RCM) to the FP control module. Signal communication between the RCM and the FP control module allows the PCM to shut-off the FP.
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.