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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1416 (Engine Control System - 4.8L, 5.3L, & 6.0L - Introduction) >> Repair Instructions >> Fuel Rail Crossover Pipe Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of EVAP/Fuel Hose/Pipes
    GM856643Courtesy of GENERAL MOTORS CORP.
  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) .
    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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