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Home >> Nissan-Datsun >> 2005 >> Maxima SE, Automatic >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System >> Fuel System >> General Precautions

General Precautions

WARNING: When replacing fuel line parts, be sure to observe the following. 
  • Put a "CAUTION: INFLAMMABLE" sign in the work area. 
  • Be sure to work in a well ventilated area and have a CO2 fire extinguisher. 
  • Do not smoke while working on the fuel system. Keep open flames and sparks away from the work area. 
CAUTION:
  • 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  .
    • Disconnect the battery ground cable. 
  • Always replace O-rings and clamps with new ones. 
  • Do not kink or twist tubes 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: Fuel Hose Clamp With Torque Specifications
    G02411309Courtesy 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. 

    • a) Apply fuel pressure to the fuel lines by turning the ignition switch to ON (without starting the engine). Then check for fuel leaks at the fuel tube connections. 
    • b) Start the engine and rev the engine, then check for fuel leaks at the fuel tube connections. 
  • After installing tubes, run engine 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  . 
  • For servicing "On Board Refueling Vapor Recovery (ORVR)" parts, refer to  ON BOARD REFUELING VAPOR RECOVERY (ORVR)  . 
    Fig 2: Connecting Fuel Tube Quick Connector
    G02411310Courtesy of NISSAN MOTOR CO., U.S.A.