Check the fuel filter restriction by measuring the pressure drop across the fuel filter using the following steps. NOTE: The fuel inlet and outlet are…

Rear gear train engines use a dual fuel filter system. • The pressure side fuel filter is used for filtration only and is pressurized by…

Front Gear Train Do not bend, pry, or kink the fuel drain lines during installation. 1 Install the fuel drain line from the fuel pump.…

Inspect the fuel drain lines for clogging and pinched areas. Check the connectors for cracks, wear, or pinched areas. Replace the fuel line if damaged.…

Front Gear Train Mark the location of all clips and routing of the fuel drain lines to ensure they are replaced in the correct location…

The fuel drain lines contain low pressure fuel. All engines have fuel drain lines as follows: 1 From the high pressure fuel pump 2 From…

Operate the engine at cranking or low idle and measure the fuel pressure. Observe the reading on the gauge. If the fuel drain line restriction…

Front Gear Train Remove the banjo bolt from the fuel return line located on the right side of the filter head (1 ). Install the…

Front Gear Train This test checks for air leaks in the fuel supply lines. If all components are functioning properly, the fuel lines after the…

The replacement of fuel supply lines, fuel filters, fuel pump, high-pressure fuel lines, and injectors will let air into the fuel system. Air in the…