GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Avalanche - 4WD 🢒 Engine 🢒 Engine Controls - 8.1L 🢒 Evaporative Emission Hoses/Pipes Replacement - Engine

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
  3. Disconnect the evaporative emission (EVAP) purge tube at the purge solenoid.

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

    5. Object Number: 843918 Size: SH
  5. Disconnect the EVAP purge tube clip from the fuel rail bracket.
  6. 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
  3. Connect the EVAP purge tube at the purge solenoid.

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