Evaporative Emission Canister Replacement TrailBlazer, Envoy, Rainier

1. Remove the spare tire. Reference the owners manual for additional information if needed.
2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .



3. Disconnect the evaporative emission (EVAP) vapor pipe (1) from the EVAP canister.
4. Disconnect the EVAP purge pipe (2) from the EVAP canister.
5. Disconnect the EVAP vent pipe (3) from the EVAP canister.



6. Remove the bolts (1) from the EVAP mounting bracket (2).
7. Remove the EVAP canister and bracket assembly from the vehicle.



8. Remove the bolt (1) attaching the EVAP canister (3) to the mounting bracket (2).
9. Remove the EVAP canister (3) from the mounting bracket (2).



10. Remove the EVAP retaining bracket (2) from the EVAP canister (3) by releasing the retaining bracket clip (1) from the EVAP canister (3).

1. Install the EVAP retaining bracket (2) to the EVAP canister (3) ensuring the retaining bracket clip (1) is fully engaged.



2. Install the EVAP canister (3) to the mounting bracket (2).

Notice: Refer to Fastener Notice in the Preface section.

3. Install the bolt (1) attaching the EVAP canister (3) to the mounting bracket (2).

Tighten
Tighten the bolt to 20 N·m (15 lb ft).




4. Install the EVAP canister and bracket assembly to the vehicle.
5. Install the bolts (1) to the EVAP mounting bracket (2).

Tighten
Tighten the bolts to 20 N·m (15 lb ft).




6. Connect the evaporative emission (EVAP) vapor pipe (1) to the EVAP canister.
7. Connect the EVAP purge pipe (2) to the EVAP canister.
8. Connect the EVAP vent pipe (3) to the EVAP canister.
9. Lower the vehicle.
10. Install the spare tire. Reference the owners manual for additional information if needed.

Evaporative Emission Canister Replacement TrailBlazer EXT, Envoy XL, Envoy XUV

1. Remove the fuel tank. Refer to Fuel Tank Replacement .



2. Disconnect the evaporative emission (EVAP) vapor pipe (2) from the EVAP canister.
3. Disconnect the EVAP vent pipe (1) from the EVAP canister.
4. Disconnect the EVAP purge pipe from the EVAP canister. The purge pipe is the small pipe next to the vapor pipe (2).

Important: Do not pry against the surface of the evaporative emissions canister. This could damage the canister.

5. Remove the EVAP canister from the tabs of the canister bracket by inserting a flat head screwdriver into the center slots of the tabs as indicated in the illustration.



6. Pry the canister away from the tabs as indicated in the illustration.
7. Slide the canister away from the single tab side to disengage the EVAP canister from the bracket.

Important: Considerable force may be necessary to install the EVAP canister into the two tab side.

1. Slide the EVAP canister into the single tab side and press the canister into the two tab side.

Ensure the tabs have completely engaged.




2. Connect the EVAP purge pipe to the EVAP canister. The purge pipe is the small pipe next to the vapor pipe (2).
3. Connect the EVAP vent pipe (1) to the EVAP canister.
4. Connect the EVAP vapor pipe (2) to the EVAP canister.
5. Install the fuel tank. Refer to Fuel Tank Replacement .