SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD2010TAURUS SEL, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - PINPOINT TEST HF: CATALYST EFFICIENCY MONITOR AND EXHAUST SYSTEMS THROUGH PINPOINT TEST JC: SECONDARY IGNITION (COIL PACK) - (EXCEPT DIESEL & HYBRID)PINPOINT TEST HG: POSITIVE CRANKCASE VENTILATION (PCV) SYSTEMTEST PROCEDURE
2010 Ford Taurus SEL, FWD

Test Procedure

2010 Ford Taurus SEL, FWDSECTION Test Procedure
  1. HG1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) 
    • Check for DTCs P053A, P145E, P1489 or P2282.

    Are any of the above listed DTCs present? 

    Yes No
    For DTCs P053A, P145E and P1489, GO to  HG5.
    For DTC P2282, GO to  HG4.    		 For all other symptoms without DTCs, GO to  HG2.
  2. HG2 VISUAL INSPECTION OF THE PCV VALVE 
    • Remove and inspect the PCV valve for damage.
    • 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  HG3.
  3. HG3 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
    REINSTALL the PCV valve.
    For PCV systems with electrical heating, GO to  HG5.
    For PCV systems without electrical heating, GO to  HG10.    		 The PCV valve is sticking. INSTALL a new PCV valve. VERIFY the symptom no longer exists.
  4. HG4 CHECK FOR VACUUM LEAKS 
    • Check for a damaged or disconnected PCV vacuum hose.
    • 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 DTCs. REPEAT the self-test.    		 GO to  HG11.
  5. HG5 CHECK THE HARNESS VOLTAGE TO THE PCM CONTROLLED PCV HEATER 
    • Suspect PCV connector disconnected.
    • Ignition ON, engine OFF.
    • Measure the voltage between:
      (+) PCVHF Connector, Harness Side (-)
      IGN START/RUN Ground
    • Measure the voltage between:
      (+) PCV Connector, Harness Side (-)
      IGN START/RUN Ground

    Is the voltage greater than 10 V? 

    Yes No
    GO to  HG6. REPAIR the open circuit. CLEAR the DTCs. REPEAT the self-test.
  6. HG6 CHECK THE HARNESS CIRCUIT TO THE PCM CONTROLLED PCV HEATER 
    • Ignition OFF.
    • PCM connector disconnected.
    • Measure the resistance between:
      (+) PCM Connector, Harness Side (-) PCVHF Connector, Harness Side
      PCVHF PCVHF
    • Measure the resistance between:
      (+) PCM Connector, Harness Side (-) PCV Connector, Harness Side
      PCVHC PCVHC

    Is the resistance less than 5 ohms? 

    Yes No
    GO to  HG7. REPAIR the open circuit. CLEAR the DTCs. REPEAT the self-test.
  7. HG7 CHECK THE SUSPECT PCV HEATER CIRCUIT FOR A SHORT TO GROUND IN THE HARNESS 
    • Measure the resistance between:
      (+) PCVHF Connector, Harness Side (-)
      PCVHF Ground
    • Measure the resistance between:
      (+) PCV Connector, Harness Side (-)
      PCVHC Ground

    Is the resistance greater than 10K ohms? 

    Yes No
    GO to  HG8. REPAIR the short circuit. CLEAR the DTCs. REPEAT the self-test.
  8. HG8 CHECK THE SUSPECT PCV CIRCUIT FOR A SHORT TO VOLTAGE IN THE HARNESS 
    • Ignition ON, engine OFF.
    • Measure the voltage between:
      (+) PCVHF Connector, Harness Side (-)
      PCVHF Ground
    • Measure the voltage between:
      (+) PCV Connector, Harness Side (-)
      PCVHC Ground

    Is any voltage present? 

    Yes No
    REPAIR the short circuit. CLEAR the DTCs. REPEAT the self-test. GO to  HG9.
  9. HG9 CHECK THE RESISTANCE OF THE PCM CONTROLLED SUSPECT PCV HEATER 
    • Measure the resistance between:
      (+) PCVHF Connector, Component Side (-) PCVHF Connector, Component Side
      IGN START/RUN PCVHF
    • Measure the resistance between:
      (+) PCV Connector, Component Side (-) PCV Connector, Component Side
      IGN START/RUN PCVHC

    Is the resistance between 10 - 35 ohms? 

    Yes No
    GO to  HG11. INSTALL a new PCV valve or tube. REFER to the appropriate Engine Emission Control article .
    CLEAR the DTCs. REPEAT the self-test.
  10. HG10 PCV SYSTEM CHECK 
    • Start the engine and warm it until 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 SYMPTOM CHARTS 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). REFER to the appropriate Engine Emission Control, Evaporative Emission (EVAP) Control System Vacuum Routing, for PCV system components and routing. REPAIR as necessary.
  11. HG11 CHECK IF A CONCERN OR DTC IS STILL PRESENT 
    • Connect the PCV system.
    • Clear the DTCs.
    • Carry out the self-test.

    Is the concern or DTC is still present? 

    Yes No
    GO to  HG12. Unable to duplicate or identify the concern at this time.
    RETURN to SYMPTOM CHARTS for further direction.
  12. HG12 CHECK FOR CORRECT PCM OPERATION 
    • Disconnect all the PCM connectors.
    • Visually inspect for:
      • pushed out pins
      • corrosion
    • Connect all the PCM connectors and make sure they seat correctly.
    • Carry out the PCM self-test and verify the concern is still present.

    Is the concern still present? 

    Yes No
    INSTALL a new PCM. REFER to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) , Programming the VID Block for a Replacement PCM. The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.