Fuel Tank Inspection

WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The two rollover valves built into the fuel tank are inspected in this inspection.

Follow the before repair procedure and perform the fuel line safety procedure. (See BEFORE REPAIR PROCEDURE .)
Disconnect the negative battery cable.
Remove the connector and the fuel hose from the fuel pump unit. (See QUICK RELEASE CONNECTOR REMOVAL/INSTALLATION .)
Remove the fuel tank with the fuel pump unit and fuel suction pipe bracket still installed. (See FUEL TANK REMOVAL/INSTALLATION .)
Plug the fuel pump unit pipe and the port C.
Set the fuel tank on a level surface.
Verify that there is air flow through the port A when pressurizing port B.
- If there is no air flow, replace the fuel tank.
Verify that there is air flow through port B when pressurizing the port A.
- If there is no air flow, replace the fuel tank.
- If there is air flow, place the fuel tank upside down.
Fig 1: Locating Fuel Tank Ports
Courtesy of MAZDA MOTORS CORP.
Verify that there is no air flow through port A when pressurizing the port B.
- If there is air flow, replace the fuel tank.
Fig 2: Locating Fuel Tank Plugs
Courtesy of MAZDA MOTORS CORP.