Evaporative Emission System Hoses/Pipes Replacement Engine

1. Remove the EVAP purge pipe from the purge solenoid.



2. Release the EVAP purge pipe mounting clips (1).
3. Remove the EVAP purge pipe (4) from the EVAP canister.

1. Install the EVAP purge pipe mounting clips (1).
2. Install the EVAP purge pipe (4) to the EVAP canister.



3. Install the EVAP purge pipe to the purge solenoid.

Evaporative Emission System Hoses/Pipes Replacement Chassis

Important: When replacing the EVAP pipe, always replace the pipe with original equipment or parts that meet the GM specifications for this part. The replacement pipe must have the same type of fittings as the original pipe in order to ensure the integrity of the connection.

1. Clean the pipe connections and the surrounding areas before disconnecting in order to avoid possible contamination of the EVAP system.
2. Disconnect the fuel tank vapor pipe (1) from the canister.
3. Release the EVAP pipe retaining clips (2).
4. Remove the hose clamp securing the pipe to the hose connection (3).
5. Remove the EVAP pipe.

1. Position the EVAP pipe for installation.
2. Install the EVAP pipe to the hose connector.
3. Install the clamp.
4. Install the EVAP pipe retaining clips (2).
5. Connect the fuel tank vapor pipe (1) to the canister.

Important: When replacing the EVAP pipe, always replace the pipe with original equipment or parts that meet the GM specifications for this part. The replacement pipe must have the same type of fittings as the original pipe in order to ensure the integrity of the connection.

Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.




1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the hose clamp (3) securing the front EVAP pipe to the chassis mounted EVAP pipe.
3. Release the EVAP pipe connector hose from the EVAP chassis pipe.
4. Remove the fuel tank. Refer to Fuel Tank Replacement .
5. Release the EVAP pipe from the chassis retainers.
6. Remove the EVAP pipe.

1. Position the EVAP pipe for installation.
2. Secure the EVAP pipe to the chassis retainers.
3. Install the fuel tank. Refer to Fuel Tank Replacement .
4. Install the EVAP pipe connector hose (3) from the front EVAP pipe to the chassis EVAP pipe.
5. Secure the hose clamp.