Fuel Vapor Pipe and Hoses-2

The fuel vapor line is made up of nylon line, steel pipe, and quick connectors. The vapor pipe, line, and hoses carry fuel vapors from the fuel tank to the charcoal canister. The fuel vapor line has a evaporative system service port located between the purge solenoid and the charcoal canister. The evaporative system service port is identified by a green colored cap The evaporative system service port allows connection for special tools in diagnosing the evaporative emissions system. The vapor lines extend from the fuel sender to the canister. However, it does not follow the same route as the fuel feed pipe. Under no conditions use copper or aluminum tubing to replace steel tubing. Those materials do not have satisfactory durability to withstand normal vehicle vibrations and corrosion.