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Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1626 (Fuel System) >> Fuel System >> General Precautions
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General Precautions

WARNING: This page is about a different car, the 2005 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: When replacing fuel line parts, be sure to observe the following.
  • Put a "CAUTION: INFLAMMABLE" sign in the workshop.
  • Be sure to work in a well ventilated area and furnish workshop with a CO2 fire extinguisher.
  • Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
CAUTION:
  • Use gasoline required by the regulations for octane number. Refer to "PRECAUTIONS FOR FUEL ".
  • Before removing fuel line parts, carry out the following procedures:
    • Put drained fuel in an explosion-proof container and put the lid on securely. Keep the container in safe area.
    • Release fuel pressure from the fuel lines. Refer to "FUEL PRESSURE RELEASE " (QR), "FUEL PRESSURE RELEASE " (VQ).
    • Disconnect the battery negative terminal.
  • Always replace O-rings and clamps with new ones.
  • Do not kink or twist hoses when they are being installed.
  • Do not tighten hose clamps excessively to avoid damaging hoses.

    Tighten high-pressure rubber hose clamp so that clamp end is 3 mm (0.12 in) from hose end. 

    Tightening torque specifications are the same for all rubber hose clamps. 

    Ensure that screw does not contact adjacent parts. 

    Fig 1: Tightening High-Pressure Rubber Hose Clamp
    G03594415Courtesy of NISSAN MOTOR CO., U.S.A.
  • After connecting the fuel tube quick connectors, make sure the quick connectors are secure.

    Ensure that the connector and resin tube do not contact any adjacent parts.

  • After installing tubes, make sure there is no fuel leakage at connections in the following steps.
    • Apply fuel pressure to fuel lines with turning ignition switch ON (with engine stopped). Then check for fuel leaks at connections.
    • Start the engine and rev it up and check for fuel leaks at connections.
  • Use only a Genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may come on.
  • For servicing "Evaporative Emission System" parts, refer to "EVAPORATIVE EMISSION SYSTEM " (QR), "EVAPORATIVE EMISSION SYSTEM " (VQ).
  • For servicing "On Board Refueling Vapor Recovery (ORVR)" parts, refer to "ON BOARD REFUELING VAPOR RECOVERY (ORVR) " (QR), "ON BOARD REFUELING VAPOR RECOVERY (ORVR) " (VQ).
    Fig 2: Disconnecting Fuel Tube Quick Connectors
    G03594416Courtesy of NISSAN MOTOR CO., U.S.A.