GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 750525  Size: SH
  1. Remove the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement in Engine Mechanical - 8.1L.
  2. Disconnect the fuel injector harness electrical connector (2).

  3. Object Number: 843915  Size: SH
  4. Disconnect the evaporative emission (EVAP) purge tube at the purge solenoid.

  5. Object Number: 695582  Size: SH
  6. To disconnect the EVAP purge tube connector (1), slide the retaining tab (2) to the release position and separate the connection.

  7. Object Number: 843918  Size: SH
  8. Disconnect the EVAP purge tube clip from the fuel rail bracket.
  9. Disconnect the EVAP purge tube at the EVAP pipe.

Installation Procedure


    Object Number: 843918  Size: SH
  1. Connect the EVAP purge tube at the EVAP pipe.
  2. Connect the EVAP purge tube clip to the fuel rail bracket.

  3. Object Number: 843915  Size: SH
  4. Connect the EVAP purge tube at the purge solenoid.

  5. Object Number: 750525  Size: SH
  6. Connect the fuel injector harness electrical connector (2).
  7. Install the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement in Engine Mechanical - 8.1L.