Fuel System - Overview: Overview

The diesel fuel system consists of the following:

• Fuel tank
• Fuel tubes
• Fuel filter/water separator (located behind the fuel tank)
• Fuel cooler
• Fuel pump and level sender (located in the fuel tank)
• Fuel tank and filler pipe assembly
• Easy Fuel™ (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
• Supplemental refueling adapter located in the glove compartment
• Fuel Pump Control Module (located on the frame in front of the Diesel Exhaust Fluid Tank)
• High-pressure fuel system (located on the engine)

Fuel Pump Shut-off Feature 

In the event of a moderate to severe collision, the vehicle is equipped with a Fuel Pump and Sender Shut-off Feature that is initiated by the event notification signal.

The event notification signal is a signal provided by the RCM to the Fuel Pump Control Module. Signal communication between the RCM and the Fuel Pump Control Module allows the PCM to shut-off the Fuel Pump.

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 turn the ignition to the ON position. In some instances the vehicle may not start the first time and may take one additional ignition cycle.