Fuel Shut-Off/Rollover Valve Inspection

CAUTION:

Disconnecting/connecting the quick release connector without cleaning it may cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting using a cloth or soft brush, and make sure that it is free of foreign material.

NOTE:

This inspection is for fuel shut-off valve and rollover valve integrated in the fuel tank.

Disconnect the quick release connector and the fuel pump unit connector. (See FUEL PUMP UNIT REMOVAL/INSTALLATION .)
Remove the fuel tank with the fuel pump unit. (See FUEL TANK REMOVAL/INSTALLATION .)
Plug the port as shown in the figure.
Level the fuel tank.

Fig 1: Identifying Plug Ports And Fuel Pump Unit
Courtesy of MAZDA MOTORS CORP.
Blow through port B and verify that there is airflow from port A.
- If there is no airflow, replace the fuel tank.
- If there is airflow, turn the fuel tank upside down, and proceed to Step 6.
Blow through port B and verify that there is no airflow from port A.
- If there is airflow, replace the fuel tank.
  
  Fig 2: Identifying Plug Ports And Fuel Pump Unit
  Courtesy of MAZDA MOTORS CORP.