Notice: Do Not attempt to repair the EVAP pipes or the connecting hoses. Replace the damaged EVAP pipes or the connecting hoses are damaged. If the nylon EVAP pipe becomes kinked and cannot be straightened, it must be replaced.

Notice: Replace the EVAP pipes and hoses with the original equipment or parts that meet the GM specifications for those parts. The replacement EVAP pipe must have the same type of fittings as the original pipe in order to ensure the integrity of the connection. When replacing EVAP hoses, use only reinforced fuel-resistant hose identified with the word Fluoroelastomer or GM 6163-M on the hose. The inside hose diameter must match the outside pipe diameter. Do not use rubber hose within 100 mm (4 in) of any part of the exhaust system or within 254 mm (10 in) of the catalytic converter.

Notice: Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering the open pipes and passages.

Important: Always maintain cleanliness when servicing fuel system components.

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.



2. Remove the hoses (3, 4) from the canister fittings (1, 2). Mark the hoses to install on the new canister.
3. Remove the hardware retaining the EVAP pipes to body.
4. With the aid of an assistant lower the fuel tank. Refer to Fuel Tank Replacement .
5. Disconnect the EVAP lines at the rear of the fuel tank.



6. Remove the EVAP pipes. Note the location of the EVAP pipes for installation.

Notice: Properly secure the EVAP pipe in order to prevent chafing of the pipe.

Important: Route the replacement EVAP pipe in the same manner as the original EVAP pipe was routed.

1. Reinstall the EVAP pipes into the vehicle.
2. Connect the EVAP lines at the rear of the fuel tank.
3. Reinstall the fuel tank. Refer to Fuel Tank Replacement .
4. Reinstall the hardware retaining the EVAP pipes to the body.



5. Reconnect the hoses (3, 4) to the canister fittings (1, 2).
6. Lower the vehicle.