Fuel System

Fuel System

3.5L Gasoline Turbocharged Direct Injection (GTDI)

The fuel system consists of the following:

- Fuel supply tubes

- Fuel vapor tubes

- Fuel Pump (FP) module (located in the fuel tank)

- High pressure Fuel Pump (FP) (located in the left valve cover)

- Lifetime fuel filter (serviced as part of the FP (Fuel Pump) module)

- Fuel tank filler pipe assembly

- Fuel tank

- Fuel rail

- Fuel injectors

- Fresh air tube (located on top of the transmission)

- Easy FuelTM (capless) fuel tank filler pipe assembly (which cannot be modified in any way)

- Supplement refueling adapter (located with the vehicle jack)

- Two-speed Mechanical Returnless Fuel System (MRFS)

The vehicle is equipped with a Gasoline Turbocharged Direct Injection (GTDI) system.

Fuel delivery is accomplished through a MRFS (Mechanical Returnless Fuel System).

- The FP (Fuel Pump) module supplies pressurized fuel to the high pressure FP (Fuel Pump).

- The high pressure FP (Fuel Pump) supplies high pressure low volume fuel pressure to the fuel rails.

- The fuel injectors are separately controlled and mounted to the intake manifold for each cylinder.

- The fuel tubes route the fuel from the FP (Fuel Pump) to the fuel rail.

- The fuel filter cleans the fuel delivered from the FP (Fuel Pump) to the fuel rail.

3.7L, 5.0L (4V), 6.2L (2V)

The fuel system consists of the following:

- Fuel supply tubes

- Fuel vapor tubes

- Fuel Pump (FP) module (located in the fuel tank)

- Lifetime fuel filter (serviced as part of the FP (Fuel Pump) module)

- Fuel tank filler pipe assembly

- Fuel tank

- Fuel rail

- Fuel injectors

- Fresh air tube (located on top of the transmission)

- Easy FuelTM (capless) fuel tank filler pipe assembly (which cannot be modified in any way)

- Supplement refueling adapter (located with the vehicle jack)

- Two-speed Mechanical Returnless Fuel System (MRFS)

The vehicle is equipped with a Multi-Port Fuel Injection (MFI) system.

Fuel delivery is accomplished through a MRFS (Mechanical Returnless Fuel System).

- The FP (Fuel Pump) supplies the fuel injectors with pressurized fuel through the fuel rail.

- The fuel injectors are separately controlled and mounted to the intake manifold for each cylinder.

- The fuel tubes route the fuel from the FP (Fuel Pump) to the fuel rail.

- The fuel filter cleans the fuel delivered from the FP (Fuel Pump) to the fuel rail.

Fuel Pump (FP) Shut-off Feature

In the event of a moderate to severe collision, the vehicle is equipped with a Fuel Pump (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 (Fuel Pump) control module. Signal communication between the RCM (Restraints Control Module) and the FP (Fuel Pump) control module allows the PCM to shut-off the FP (Fuel Pump).

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

For exploded view information of the fuel system, refer to Fuel Tank and Filter Pipe - Exploded View or Fuel Lines and Fuel Filter - Exploded View in Fuel Delivery and Air Induction.