GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2007 🢒 Montana SV6 🢒 Engine 🢒 Engine Controls and Fuel - 3.9L 🢒 Evaporative Emission Canister Replacement

Evaporative Emission Canister Replacement Short Wheel Base

Removal Procedure

    Object Number: 669545 Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disconnect the evaporative emission (EVAP) vent hose (3), purge pipe (5), and vapor pipe (4) from the EVAP canister (1).
  3. Remove the forward attaching nut from the EVAP canister bracket.
  4. Remove the two rear attaching nuts (2) from the EVAP canister bracket at the fuel tank.
  5. Lower the EVAP canister assembly.
  6. Pull the rear canister bracket flange away from the EVAP canister.
  7. Lift the rear of the EVAP canister from the bracket to release the forward tab.

Installation Procedure
  1. Install the EVAP canister into the forward tab of the canister bracket.
  2. Press the rear of the EVAP canister down in order to engage the rear bracket tabs.

    3. Object Number: 669545 Size: SH
  3. Install the EVAP canister assembly to the fuel tank.

    4. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the two attaching nuts (2) to the EVAP canister bracket at the fuel tank studs.

    5. Tighten
    Tighten the nuts to 9 N·m (80 lb in).

  5. Install the forward attaching nut to the canister bracket.

    6. Tighten
    Tighten the nuts to 9 N·m (80 lb in).

  6. Connect the EVAP vent hose (3), purge pipe (5), and vapor pipe (4) to the EVAP canister (1).
  7. Lower the vehicle.

Evaporative Emission Canister Replacement Long Wheel Base

Removal Procedure

    Object Number: 1544795 Size: SH
  1. Remove the fuel tank. Refer to Fuel Tank Replacement .
  2. Disconnect the evaporative emission (EVAP) canister vent pipe (6) from the EVAP canister (2).
  3. Disconnect the EVAP canister vapor pipe from the EVAP canister. Refer to Plastic Collar Quick Connect Fitting Service .
  4. Disconnect the EVAP canister purge pipe from the EVAP canister. Refer to Plastic Collar Quick Connect Fitting Service .
  5. Remove the EVAP canister (2) from the fuel tank.

Installation Procedure

    Object Number: 1544795 Size: SH

    Important: High resistance is normal when installing the EVAP canister.

  1. Position and push the EVAP canister (2) into the EVAP canister bracket of the fuel tank.
  2. Pull up on the EVAP canister (2) to ensure a proper lock to the fuel tank bracket.
  3. Connect the EVAP canister purge pipe to the EVAP canister. Refer to Plastic Collar Quick Connect Fitting Service .
  4. Connect the EVAP canister vapor pipe to the EVAP canister. Refer to Plastic Collar Quick Connect Fitting Service .
  5. Connect the EVAP canister vent pipe (6) to the EVAP canister (2).
  6. Install the fuel tank. Refer to Fuel Tank Replacement .