Fuel Shut-off/Rollover Valves - Mazda6 & MPV
WARNING: This page is about a different car, the 2003 Mazda Protege5, 2003 Mazda Protege, 2003 Mazda MX-5 Miata, 2003 Mazda MPV, and 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
Fuel shut-off/rollover valves are an integral part of fuel tank. If valve(s) are faulty, replace fuel tank.
- Clean area around fuel line connectors. Disconnect fuel lines and wiring from fuel tank. Remove fuel tank with pump. Plug main pipe at fuel pump unit. Plug port "C". See Fig 1 or Fig 2 .
- Level fuel tank. Blow through port "B". If air flows out of port "A", go to next step. If air does not flow out of port "A", replace tank.
- Turn tank upside down. Blow through port "B". If air flows out of port "A", replace tank. If air does not flow out of port "A", test is complete.