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

Removal Procedure

    Object Number: 856670 Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Disconnect the evaporative emission (EVAP) canister vent pipe (3) from the canister.
  3. Remove the vent pipe clip from the canister bracket.

    4. Object Number: 856658 Size: SH
  4. Remove the EVAP pipe clip from the canister bracket.

    5. Object Number: 856667 Size: SH
  5. Disconnect the EVAP canister pipe from the canister.
  6. Disconnect the EVAP canister pipe from the EVAP/fuel pipe assembly.

    7. Object Number: 856665 Size: SH
  7. Facing toward the front of the vehicle, slide the EVAP canister to the left.
  8. Lift up and remove the EVAP canister.
  9. Cap the EVAP pipes in order to prevent possible EVAP system contamination.
  10. If necessary, remove the small EVAP pipe from the canister.

Installation Procedure

    Object Number: 856665 Size: SH
  1. If necessary, install the small EVAP pipe to the canister.
  2. Remove the caps from the EVAP pipes.
  3. Place the EVAP canister into the large frame holes.
  4. Facing toward the front of the vehicle, slide the EVAP canister to the right.

    5. Object Number: 856667 Size: SH
  5. Connect the EVAP canister pipe to the EVAP/fuel pipe assembly.
  6. Connect the EVAP canister pipe to the canister.

    7. Object Number: 856658 Size: SH
  7. Install the EVAP pipe clip to the canister bracket.

    8. Object Number: 856670 Size: SH
  8. Install the vent pipe clip to the canister bracket.
  9. Connect the EVAP canister vent pipe (3) to the canister.
  10. Lower the vehicle.