Repair procedures: Removal

Turn the ignition switch OFF and disconnect the battery negative (-) cable.
Disconnect the canister close valve connector (A).
Disconnect the ventilation tube quick connector (B).

Fig 1: Identifying Ventilation Tube Quick Connector
Courtesy of KIA MOTORS AMERICA, INC.
Release the lever (A), and then remove the canister close valve & fuel tank air filter assembly (B) after rotating it in the direction of the arrow in the figure.

Fig 2: Identifying Fuel Tank Air Filter Assembly And Lever
Courtesy of KIA MOTORS AMERICA, INC.
Release the lever (A), and then separate the canister close valve (B) from the fuel tank air filter (C) after rotating it in the direction of the arrow in the figure.

Fig 3: Identifying Canister Close Valve Lever
Courtesy of KIA MOTORS AMERICA, INC.

Fig 4: Separating Canister Close Valve From Fuel Tank Air Filter
Courtesy of KIA MOTORS AMERICA, INC.