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Home › Mazda › 2003 › MPV ES › Repair and Diagnosis › Engine Performance › System › Engine Controls [System & Component Testing] › Emission Systems & Sub-Systems › Positive Crankcase Ventilation › PCV Valve Inspection [L3] › Notes

PCV Valve Inspection [L3]: Notes

  1. Disconnect the negative battery cable.
  2. Remove the intake manifold. (see INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [L3] ).
  3. Remove the PCV valve.
  4. Blow through the valve and verify that air flows as specified.
    • If not as specified, replace the PCV valve.
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