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Home >> Mazda >> 2015 >> 3 SV, Automatic Trans >> Repair and Diagnosis >> Engine Mechanical >> Auxiliary Emission Control Systems >> Engine Emission System >> Check Valve Inspection >> U.S.A. And CANADA

U.S.A. And CANADA

  1. Remove the check valve. (See FUEL TANK REMOVAL/INSTALLATION .)
  2. Verify that there is airflow when positive pressure is applied to port A.
  3. Verify that there is airflow when negative pressure is applied to port A.
    • If there is no airflow, replace the breather pipe. (See FUEL TANK REMOVAL/INSTALLATION .)
      Fig 1: Identifying Check Valve And Port
      G09782798Courtesy of MAZDA MOTORS CORP.
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