Fuel System
The fuel system consists of the:
- All-Wheel Drive (AWD) saddle-type or Front Wheel Drive (FWD) L-shaped fuel tank.
- Fuel Pump (FP) module.
- fuel level sensor assembly (saddle-type fuel tank).
- fuel level sender (mounted on the FP module and, if equipped, on the fuel level sensor assembly).
- Easy Fuel™ (capless) fuel tank filler pipe assembly.
- FP control module on 2.5L and 3.0L vehicles.
- Inertia Fuel Shutoff (IFS) switch on 3.5L vehicles.
- fuel tubes.
- fuel injectors.
- fuel rail.
- Fuel Tank Pressure (FTP) sensor (part of the fuel vapor tube assembly).
The vehicle
- has a single speed Mechanical Returnless Fuel System (MRFS) on 3.5L vehicles.
- has a 2-speed MRFS on 2.5L and 3.0L vehicles.
- has either a single container (L-shaped) (FWD) or a dual container (saddle-type) (AWD) fuel tank.
- has a FP module containing:
- an electric FP, which provides pressurized fuel to the fuel rail.
- a serviceable fuel level sender.
- a check valve, which maintains system pressure after the FP is shut off.
- a pressure relief valve for overpressure protection in the event of restricted fuel flow.
- a lifetime fuel filter providing filtration to protect the fuel injectors from foreign material.
- has an individual fuel level sensor, AWD vehicles only.
- has a fuel rail-mounted Schrader valve on early build 3.0L vehicles.
- has fuel, vapor and brake tubes in an integrated bundle assembly attached to the underside of the vehicle by retaining clips.
- has an Easy Fuel™ (capless) fuel tank filler pipe assembly, which cannot be modified in any way.
- has a supplemental refueling adapter located in the luggage compartment.
- has a FTP sensor (part of the fuel vapor tube assembly).
- is equipped with a sequential Multi-Port Fuel Injection (MFI) system.
- uses separately controlled fuel injectors for each cylinder. The fuel injectors are mounted to the intake manifold.
- fuel injectors are supplied with pressurized fuel from the FP module to the fuel rail.