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Home >> Mazda >> 2004 >> MPV ES >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System >> NONRETURN Valve Inspection

NONRETURN Valve Inspection

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  1. Remove the nonreturn valve. (See FUEL TANK REMOVAL/INSTALLATION .)
  2. Verify that the nonreturn valve opens up to 90 degrees  when it is pushed from the fuel-filler pipe side, and it returns to the normal position by the spring force.
    • If the nonreturn valve does not open up to 90 degrees  or does not return to the normal position, replace the nonreturn valve.
      Fig 1: Inspecting Nonreturn Valve
      G00991546Courtesy of MAZDA MOTORS CORP.
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