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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 126 (Engine Mechanical (CUMMINS 5.0L) (1 Of 2)) >> Basic Inspection >> Fuel System >> High-Pressure Fuel Injector Drain Line Restriction >> Initial Setup

Initial Setup

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
  • When using compressed air for cleaning, to avoid the risk of personal injury from flying debris and dirt:
    • Do not exceed 207 kPa (2.111 kg/cm 2 , 30 psi).
    • Wear appropriate eye protection and protective clothing including gloves.
  • When using high-pressure water or steam cleaning equipment, to avoid the risk of personal injury from flying debris and hot steam:
    • Wear appropriate eye protection and protective clothing including gloves and a face shield.
  • The fuel system (fuel pump, high pressure fuel lines, fuel rail, injectors) contain very high pressure fuel. To avoid the risk of personal injury or fire:
    • Do not loosen any fittings while the engine is running.
    • Wait at least 10 minutes after shutting down the engine before loosening any fittings in the high-pressure fuel system to allow pressure to decrease to a lower level.
    • Wear appropriate eye protection and protective equipment as high-pressure fuel spray can penetrate the skin.
    • Never smoke or allow sparks or flames (such as pilot lights, electrical switches, or welding equipment) in the work area. Never allow diesel fuel to spill onto a hot exhaust manifold which can cause a fire.
  • Diesel fuel and diesel fuel vapor is flammable. To avoid risk of fire or burns, never smoke or allow sparks or flames (such as pilot lights, electrical switches, or welding equipment) in the work area. Never allow diesel fuel to spill onto a hot exhaust manifold which can cause a fire.
  1. Before diagnosing any fuel system component, (such as fuel lines, fuel pump, injectors, fuel rail, etc.) which would expose the fuel system or internal engine component to potential contaminants, prior to disassembly, clean the fittings, mounting hardware, and the area around the component to be removed.
    NOTE: Dirt or contaminants can be introduced into the fuel system and engine if the surrounding areas are not cleaned, resulting in damage to the fuel system and engine.
  2. Disconnect the injector drain line from injectors 1, 3, 5, and 7 on the bank 1 side of the engine. Refer to Removal and Installation .
  3. Plug injector drain opening with Tool.

    Tool

    :-- - (J-54427)
  4. Plug injector drain line connections 1, 3, and 5 with a suitable tool.
  5. Route the injector 7 drain line connection so it will flow into a suitable measuring device.
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