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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 528 (Engine Mechanical - 5.3L, 6.0L, 6.2L - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Fuel Rail and Injectors Removal

Fuel Rail and Injectors Removal

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    Fig 1: View Of Fuel Rail Stop Bracket & Bolt
    GM260098Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The intake manifold, throttle body, fuel injection rail and fuel injectors may be removed as an assembly. If not servicing the individual components, remove the intake manifold as a complete assembly.

  1. Remove the fuel rail stop bracket and bolt, as required.
  2. Fig 2: EVAP Purge Valve & Tubes
    GM1401970Courtesy of GENERAL MOTORS COMPANY
  3. Remove the evaporative emission (EVAP) canister purge solenoid valve (730) and tubes (729, 735).
  4. Fig 3: Fuel Rail
    GM1401976Courtesy of GENERAL MOTORS COMPANY
  5. Remove the fuel rail bolts (511).
  6. NOTE:
    • Do not separate the fuel injectors from the fuel rail, unless component service is required.
    • Use cleanliness and care when handling the fuel system components.
    • Do not allow dirt or debris to enter the fuel injectors or fuel rail components. Cap ends, as necessary.
  7. Remove the fuel rail (510) with injectors. Lift evenly on both sides of the fuel rail until all the injectors have left their bores.
  8. Fig 4: Fuel Rail & Injectors
    GM1401978Courtesy of GENERAL MOTORS COMPANY
  9. Remove the fuel injector retainers (521) and fuel injectors (533), as required.
  10. Remove the O-rings (532, 534) from the injectors, as required.