Evaporative Emission Canister Replacement Pickup

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Disconnect the rear evaporative emission (EVAP) purge pipe (2) at the chassis EVAP purge pipe (3).



3. Disconnect the fuel tank EVAP pipe at the EVAP canister.



4. Disconnect the vent valve pipe (4) at the EVAP canister.



5. Remove the EVAP canister bracket to crossmember mounting bolt.
6. Remove the EVAP canister from the vehicle.
7. Remove the rear EVAP purge pipe from the EVAP canister and the retaining clip.
8. Remove the EVAP canister from the EVAP canister bracket.

1. Install the new EVAP canister to the EVAP canister bracket.
2. Install the rear EVAP purge pipe to the EVAP canister and the retaining clip.
3. Install the EVAP canister to the vehicle.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

4. Install the EVAP canister bracket to crossmember mounting bolt.

Tighten
Tighten the bolt to 25 N·m (18 lb ft).




5. Connect the fuel tank EVAP pipe to the EVAP canister.



6. Connect the rear EVAP purge pipe (2) to the chassis EVAP purge pipe.
7. Lower the vehicle.

Evaporative Emission Canister Replacement Tahoe/Yukon

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the evaporative emission (EVAP) canister mount bolts.



3. Disconnect the pipes at the EVAP canister.



4. Disconnect the vent valve pipe (3) at the EVAP canister bracket.
5. Remove the EVAP canister from the vehicle.

1. Install the EVAP canister to the vehicle.
2. Connect the vent valve pipe (3) to the EVAP canister bracket.



3. Connect the pipes to the EVAP canister.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

4. Install the EVAP canister mounting bolts.

Tighten
Tighten the bolts to 25 N·m (18 lb ft).

5. Lower the vehicle.

Evaporative Emission Canister Replacement Suburban

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the left evaporative emission (EVAP) canister mount bolt.



3. Remove the right EVAP canister mount bolt.



4. Disconnect the pipes (1, 2) at the EVAP canister.



5. Disconnect the vent valve pipe (2) at the EVAP canister bracket.
6. Remove the EVAP canister from the vehicle.

1. Install the EVAP canister to the vehicle.
2. Connect the vent valve pipe (2) to the EVAP canister bracket.



3. Connect the pipes (1, 2) to the EVAP canister.



4. Install the left EVAP canister mounting bolt.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

5. Install the right EVAP canister mounting bolt.

Tighten
Tighten the bolts to 25 N·m (18 lb ft).

6. Lower the vehicle.

Evaporative Emission Canister Replacement Cab/Chassis

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement in Propeller Shaft.



3. Remove the two evaporative emission (EVAP) canister retaining nuts located in the crossmember.



4. Disconnect the three EVAP system pipes from the EVAP canister.
5. Remove the EVAP canister.
6. Remove the EVAP canister brackets from the EVAP canister.

1. Install the EVAP canister brackets to the EVAP canister.
2. Position the EVAP canister above the crossmember.



3. Connect the three EVAP system pipes to the EVAP canister.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

4. Install the EVAP canister retaining nuts.

Tighten
Tighten the EVAP canister retaining nuts to 10 N·m (89 lb in).

5. Install the propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement in Propeller Shaft.
6. Lower the vehicle.