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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 212 (Engine Mechanical (CUMMINS 5.0L) (2 Of 2)) >> Removal And Installation >> Fuel Rail Supply Line (High Pressure) >> Removal and Installation >> Removal

Removal and Installation: Removal

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:
  • The fuel system (fuel pump, fuel rail supply line (high-pressure), fuel rail, injectors) contain very high pressure fuel. To avoid the risk of personal injury or fire:
    • Do not loosen any fittings while 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.
  • 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.
  • 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.
CAUTION: To avoid possible engine and system damage or performance issues:
  • Brush away all dirt and debris from the area prior to opening any fuel, air intake, exhaust, cooling, aftertreatment or other engine system.
  • To avoid contamination, any open engine system ports must be closed immediately with clean care caps or an appropriate covering.
  • Do not allow any debris to fall into the engine.
  • Do not allow any chemical cleaners to enter the engine or any open systems during the cleaning process.
  1. Remove the fuel rail-to-fuel rail supply line (high pressure). Refer to Removal and Installation .
  2. Remove the air inlet connection. Refer to Removal and Installation .
  3. Loosen the fuel rail supply line nuts (A) at the fuel rail (bank 1).
    GNSALBIA2218Z-218Courtesy of NISSAN NORTH AMERICA, INC.
  4. Loosen the fuel rail supply line nuts (B) at the fuel pump.
    NOTE: Mark the location and routing of the fuel rail supply lines and clips to make sure it is replaced in the correct location during assembly.
  5. Remove the bolts (A) and (B) that secure the fuel rail supply line (1) to the cylinder head (bank 1) and rocker cover (bank 1).
    GNSALBIA2219Z-219Courtesy of NISSAN NORTH AMERICA, INC.
  6. Remove the fuel rail supply lines from the engine.
    CAUTION: Do not reuse fuel rail supply lines (high-pressure).
    NOTE: After removing the fuel rail supply line, install Tool on all open fuel system components

    Tool

    :-- - (J-54427)
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