GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 Rainier - 2WD 🢒 Engine 🢒 Engine Mechanical - 6.0L 🢒 Fuel Rail and Injectors Removal

    Caution: Refer to Fuel Rail Stop Bracket Installation Caution in the Preface section.


    Object Number: 260098 Size: SH

    Important: 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. Object Number: 1401970 Size: SH
  2. Remove the evaporative emission (EVAP) canister purge solenoid valve (730) and tubes (729, 735).

    3. Object Number: 1401976 Size: SH
  3. Remove the fuel rail bolts (511).

    4. Important: 

       • 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.

  4. Remove the fuel rail (510) with injectors. Lift evenly on both sides of the fuel rail until all the injectors have left their bores.

    5. Object Number: 1401978 Size: SH
  5. Remove the fuel injector retainers (521) and fuel injectors (533), as required.
  6. Remove the O-rings (532, 534) from the injectors, as required.