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.

1. Raise the vehicle. Go to Lifting and Jacking the Vehicle in general information.



2. Remove the hardware retaining the EVAP pipes. Note the location of the attaching hardware for installation.
3. Disconnect the EVAP pipes at the EVAP canister.
4. Disconnect the EVAP pipes at the fuel tank
5. Remove the EVAP pipes.

Notice: Always re-attach the fuel lines and fuel filter with all original type fasteners and hardware.

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 pipes onto the fuel tank.
3. Connect the EVAP pipes onto the EVAP canister.

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

4. Install the hardware retaining the EVAP pipe.
5. Lower the vehicle.