Fuel Vapor Rollover Valve - Protege

WARNING: This page is about a different car, the 2001 Mazda Protege, 2001 Mazda Millenia, 2001 Mazda MX-5 Miata, 2001 Mazda MPV, and 2001 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.

Vehicle is equipped with 2 fuel shut-off/rollover valves located in top of fuel tank. Fuel shut-off/rollover valves are part of fuel tank. Remove fuel tank. Plug main fuel pipe, return pipe of fuel pump unit and port "A"of fuel tank. See Fig 1 . Level fuel tank. Using SST 49-U014-001, blow air through port "B" and ensure air flows from port "C". If no air flow is present from port "C", replace fuel tank. If air flow is present, connect SST to port "C" and plug port "A". Apply air pressure using SST 49-U014-001 to port "C". Air should flow from port "B". If air flow is not present at port "B", replace fuel tank. If air flow is present, connect SST 49-U014-001 to port "B" and turn fuel tank upside down. With fuel tank turned upside down, blow air through port "B". Ensure air does not flow from port "C". If valve does not operate as specified, replace fuel tank.

Fig 1: Identifying Fuel Tank Ports (Protege)

Courtesy of MAZDA MOTORS CORP.