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Home >> Isuzu >> 2004 >> Ascender LS, 5.3 P, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls (Introduction) - 5.3L >> Repair Instructions >> Fuel Rail Crossover Pipe Replacement >> Removal Procedure

Removal Procedure

  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure .
  2. Disconnect the fuel feed and return pipes (1) from the fuel rail. Refer to Quick Connect Fitting(s) Service (Metal Collar) .
    Fig 1: View Of EVAP/Fuel Hose/Pipes
    GM856643Courtesy of GENERAL MOTORS CORP.
    3. Fig 2: Exploded View Of Fuel Rails & Injector Components
    GM350543Courtesy of GENERAL MOTORS CORP.
  3. Remove the fuel return pipe attaching screw (3) and the fuel return pipe retainer (2).
  4. Remove the fuel return pipe (1).
  5. Remove and discard the fuel return pipe O-ring (6).
  6. Remove the fuel pressure connection core assembly (24) from the crossover pipe (25).
  7. Remove the retaining clip attaching screw (22) and the crossover fuel pipe retainer clip (21).
  8. Remove the retaining clip attaching screw (4) and the crossover fuel pipe retainer clip (5).
  9. Remove the crossover pipe rail assembly (25) from the left hand fuel rail assembly (14) and the right hand rail assembly (15).
  10. Remove and discard the crossover fuel pipe O-rings (7, 20).
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