NONRETURN VALVE INSPECTION [ZY]

1. Remove the fuel-filler pipe. (See FUEL TANK REMOVAL/INSTALLATION [ZY].)

2. Move the valve and verify that the valve opens.

• If it does not open, replace the fuel filler pipe.

3. Verify that the valve returns to the normal position by spring force.

• If it does not return, replace the fuel-filler pipe.