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Fuel System Priming

Note: In order for the diesel fuel system to work correctly, the fuel lines must be full of fuel and contain no air. If air gets into the fuel lines, it will be necessary to prime the fuel system to eliminate the air before operating the vehicle. Air could have entered the system in one of the following ways:

    • The vehicle ran out of fuel.
    • The filter was removed for service or replacement.
    • The fuel lines were removed or disconnected for servicing.
    • The fuel pump was removed for servicing.
    •  The fuel filter water drain cock was opened while the engine was running.
        If one or more of the above occurred, air has entered the fuel system and you will need to prime the system prior to operating the vehicle.
  1. Turn the ignition key ON and wait 5 seconds.

    2. Note: 

       • Do not turn the ignition key to START. It could damage the injection pump.
       • Fuel priming can be performed using the scan tool.

  2. Turn the ignition key OFF and wait 3 seconds.
  3. Repeat steps 1 and 2 five more times.
   


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