Century V6-3100 3.1L VIN M SFI (1998)
Evaporative Emissions Hose: Service and Repair
Removal Procedure
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. Remove the hardware retaining the EVAP pipes. Note the location of the attaching hardware for installation.
2. Remove the rear inner fender guard to get EVAP canister access.
3. Disconnect the EVAP pipes at the EVAP canister.
4. Disconnect the EVAP vapor recirculation pipe (1) at the fuel filler pipe.
5. Disconnect the EVAP purge pipe (2) at the rear of the fuel tank.
6. Disconnect the EVAP fuel limiter vent valve pipe (3) at the fuel limiter vent valve.
7. Disconnect the EVAP vapor pipe (4) at the rear of the fuel tank.
8. Remove the EVAP pipes.
Installation Procedure
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. Install the EVAP pipes into the vehicle.
