LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2022 >> Transit Connect Titanium, Gas/Ethanol >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Pinpoint Tests (Pinpoint Test HC - Pinpoint Test Z) (Except Diesel & Hybrid) >> Pinpoint Tests HG: Positive Crankcase Ventilation (PCV) System >> Test Procedure

Test Procedure

  1. HG1 CHECK FOR DTCS 

    Are DTCs P04DB, P051A, P051B, P051C, P051D, P051E, P2282 or U060E present? 

    Yes No
    GO to  HG3. For symptoms without DTCs, GO to  HG2.
    For all others, RETURN to SYMPTOM CHARTS for further direction.
  2. HG2 VISUAL INSPECTION OF THE PCV SYSTEM 
    • Check the PCV valve, hoses and connections for leaks or restrictions.
    • Verify the PCV valve maintenance schedule has been followed.
    • 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.

    Is a concern present? 

    Yes No
    REPAIR as necessary. VERIFY the symptom no longer exists. GO to  HG10.
  3. HG3 CHECK FOR LEAKS 
    • Check for disconnected, damaged or restricted vacuum lines between the engine and any vacuum operated components.
    • Check for disconnected, damaged or restricted intake air system lines between the engine and any intake air system components.
    • Check for disconnected, damaged or restricted positive crankcase ventilation (PCV) system lines between the engine and any PCV components.
    • Visually inspect for a damaged or pinched PCV hose o-ring seal.
    • Visually inspect for a correctly installed oil level indicator or a damaged oil level indicator o-ring seal.
    • Check for a correctly installed oil cap and valve cover, or valve cover component for leaks.
    • Check for air leaks between the throttle body and intake valves.
    • Visually inspect the intake throttle plate for sticking or binding.
    • Verify the correct PCV valve part number.

    Is a concern present? 

    Yes No
    REPAIR as necessary.
    Clear the PCM DTCs. REPEAT the self-test.    		 For DTCs P04DB or P2282, GO to  HG10.
    For all others, GO to  HG4.
  4. HG4 MONITOR THE CRANKCASE PRESSURE SENSOR PID 
    • Ignition ON, engine running.
    • Access the PCM and monitor the CRNKCAS_P_V (VOLT) PID.

    Is the voltage between 3.3 - 4.3 V? 

    Yes No
    GO to  HG9. GO to  HG5.
  5. HG5 CHECK FOR VOLTAGE AT THE SENSOR 
    • Ignition OFF.
    • Crankcase Pressure Sensor connector disconnected.
    • Ignition ON, engine OFF.
    • Measure the voltage between:
    (+) Crankcase Pressure Sensor Connector, Harness Side (-) Crankcase Pressure Sensor Connector, Harness Side
    VREF SIGRTN

    Is the voltage between 4.5 to 5.5V? 

    Yes No
    GO to  HG6. GO to PINPOINT TEST C .
  6. HG6 CHECK FOR AN OPEN 
    • Ignition OFF.
    • PCM connector disconnected.
    • Measure the resistance between:
      (+) Crankcase Pressure Sensor Connector, Harness
      Side      		 (-) PCM Connector, Harness Side
      CKCP CKCP

    Is the resistance less than 5 ohms? 

    Yes No
    GO to  HG7. REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test.
  7. HG7 CHECK FOR A SHORT TO GROUND 
    • Ignition OFF.
    • Measure the resistance between:
      (+) Crankcase Pressure Sensor Connector, Harness Side (-)
      CKCP Ground

    Is the resistance greater than 10K ohms? 

    Yes No
    GO to  HG8. REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test.
  8. HG8 CHECK FOR A SHORT TO VOLTAGE 
    • Ignition ON, engine OFF.
    • Measure the voltage between:
      (+) Crankcase Pressure Sensor Connector, Harness Side (-)
      CKCP Ground

    Is any voltage present? 

    Yes No
    REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. For DTCP051E, GO to  HG9.
    For all others, INSTALL a new Crankcase Pressure sensor.
    Clear the PCM DTCs. REPEAT the self-test.
  9. HG9 CHECK FOR INTERMITTENT CONCERNS 
    • Ignition OFF.
    • Crankcase Pressure Sensor connector connected.
    • PCM connector connected.
    • Ignition ON, engine running.
    • Access the PCM and monitor the CRNKCAS_P_V (VOLT) PID.
    • Wiggle the harness from the component to the PCM.

    Does a sudden change in voltage occur while monitoring the PID? 

    Yes No
    REPAIR as necessary.
    Clear the PCM DTCs. REPEAT the self-test.    		 Unable to duplicate or identify the concern at this time.
    GO to PINPOINT TEST Z .
  10. HG10 PCV SYSTEM CHECK 
    NOTE: Disconnect the vacuum gauge after 20 seconds or 30.00 kpa (9 in-Hg) vacuum is reached to avoid any component damage.
    • Ignition ON, engine running.
    • Engine at normal operating temperature.
    • Disconnect the intake air system crankcase ventilation hose from the air cleaner outlet.
    • Connect a vacuum gauge to the intake air system crankcase ventilation hose.

    Is any vacuum present? 

    Yes No
    For DTC P04DB, INSTALL a new Crankcase Pressure sensor.
    Clear the PCM DTCs. REPEAT the self-test.
    For all others, the PCV system is OK.
    RETURN to SYMPTOM CHARTS for further direction.    		 CHECK for vacuum leaks or restrictions in the PCV system (such as oil cap, PCV valve, hoses, cut grommets, valve cover bolt torque or gasket leak). Refer to the appropriate Engine Emission Control article, Evaporative Emission (EVAP) Control System Vacuum Routing, for PCV system components and routing. REPAIR as necessary.
scientia non olet · About LEMON Manuals