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Home › Ford › 2014 › Fusion Energi Titanium › Repair and Diagnosis › Engine Performance › System › Engine Controls - Pinpoint Tests (Hybrid) › Pinpoint Test Hg: Positive Crankcase Ventilation (PCV) System › Test Procedure

Test Procedure

  1. HG1 VISUAL INSPECTION OF THE PCV VALVE 
    • Check the PCV valve, hoses and connections for leaks or restrictions.
    • Verify the correct PCV valve part number.
    • Verify the PCV valve is clean.
    • Verify the fresh air tube and related hoses are clean and routed correctly.

    Are there any concerns found during the visual inspection? 

    Yes No
    REPAIR as necessary. GO to HG2  .
  2. HG2 STUCK PCV VALVE CHECK 
    • Disconnect the PCV valve from the valve cover.
    • Shake the PCV valve.

    Does the PCV valve rattle when shaken? 

    Yes No
    GO to HG3  . INSTALL a new PCV valve.
  3. HG3 PCV SYSTEM CHECK 
    • Install the PCV valve.
    • Start and warm up the engine until the engine temperature is stable.
    • Disconnect the closure (fresh air) hose from the remote air cleaner or air outlet tube (the tube connecting the mass air flow sensor and the throttle body).
    • Place a stiff piece of paper over the hose end. Wait 1 minute.

    Does vacuum hold the paper in place? 

    Yes No
    The PCV system is OK.
    RETURN to ENGINE CONTROLS - SYMPTOM CHARTS (HYBRID) for further direction.    		 CHECK for vacuum leaks/obstruction in the PCV system (such as oil cap, PCV valve, hoses, cut grommets, valve cover bolt torque/gasket leak).
    REPAIR as necessary.
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