SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD2021EDGE SE, 4WDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - PINPOINT TESTS (EXCEPT DIESEL & HYBRID) (HC TO Z)PINPOINT TESTS HU: INTAKE AIR SYSTEMSTEST PROCEDURE
2021 Ford Edge SE, 4WD

Test Procedure

2021 Ford Edge SE, 4WDSECTION Test Procedure
  1. HU1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) 

    Are DTCs P0505, P0506, P0507, P050A, P050B, P050E, P115E, P1548, P2004, P2005, P2006, P2007, P2008, P2011, P2014, P2015, P2016, P2017, P2019, P2020, P2021 or P2022 present? 

    Yes No
    For DTCs P0505, P0506 or P0507, GO to  HU2
    For DTCs P050A, P050B or P050E, GO to  HU3
    For DTC P115E, GO to  HU15
    For DTC P1548, GO to  HU4
    For all others, GO to  HU6    		 GO to  HU2.
  2. HU2 CHECK THE BASE IDLE SPEED 
    NOTE: The vehicle must be at operating temperature and at idle for a minimum of 1 minute.
    • Ignition ON, engine running.
    • Determine if the idle speed is incorrect. Refer to the Typical Diagnostic Reference Values Typical Reference Value Charts, if necessary.
    • Access the PCM and monitor the RPM (RPM) PID.

    Is vehicle idle speed correct? 

    Yes No
    GO to  HU4 GO to  HU3
  3. HU3 CHECK FOR VACUUM LEAKS 
    • Listen for vacuum leaks.
    • Inspect the entire intake air system from the mass airflow (MAF) sensor to the intake manifold for leaks such as:
      • cracked or punctured intake air tube.
      • loose connections on the intake air tube at the air cleaner housing or throttle body
      • EGR valve gasket leak to intake manifold
      • intake manifold assembly or gasket
      • EGR valve diaphragm or control solenoid
      • vacuum supply connectors and hose

    Are any leaks present? 

    Yes No
    REPAIR as necessary.
    Clear the PCM DTCs. REPEAT the self-test.    		 GO to  HU4
  4. HU4 CHECK THE INTAKE AIR SYSTEM FOR LEAKS, OBSTRUCTIONS AND DAMAGE 
    • Ignition OFF.
    • Remove the air cleaner element. Check the air cleaner for restrictions.
    • Check for restrictions between the air inlet and the throttle body.

    Are any concerns present? 

    Yes No
    REMOVE the restriction. INSTALL a new air cleaner element. Refer to the appropriate Intake Air Distribution and Filtering article.
    Clear the PCM DTCs. REPEAT the self-test.    		 REINSTALL the air cleaner element.
    For DTCs P050A, P050B or P050E, Unable to identify the concern at this time. Clear the PCM DTCs. REPEAT the self-test.
    For all others, GO to  HU5
  5. HU5 CHECK THE POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM 
    NOTE: A high idle may indicate a vacuum leak.
    • Check for any PCV system leaks.

    Is a concern present? 

    Yes No
    REPAIR as necessary.
    Clear the PCM DTCs. REPEAT the self-test.    		 For Aviator,
    Bronco Sport,
    Corsair,
    E-Series,
    Escape/Kuga,
    Explorer,
    F-150 2.7L,
    F-150 3.5L,
    F-650/F-750,
    F-Series Super Duty,
    Motorhome/Stripped Chassis/Step Van,
    Mustang,
    Navigator,
    Ranger 2.3L,
    Transit,
    Transit Connect 2.0L, and
    Transit Connect 2.5L, GO to  HU15
    For all others, Unable to duplicate or identify the concern at this time.
    RETURN to Symptom Charts for further direction.
  6. HU6 VISUAL INSPECTION FOR DISCONNECTED IMRC LINKAGE 
    • Inspect the IMRC for any disconnected or damaged linkages.
    • Inspect the IMRC solenoid and vacuum lines for correct connection, damage, vacuum leaks or restrictions.
    • Disconnect the IMRC linkage.
    • Inspect the linkage for restrictions. Spring tension in one direction is normal.
    • Rotate the IMRC plate to fully open and to fully closed, contacting both limits.
    • Check for restrictions during rotation.

    Is a concern present? 

    Yes No
    REPAIR as necessary.
    Clear the PCM DTCs. REPEAT the self-test.    		 GO to  HU7
  7. HU7 CHECK THE FUNCTIONALITY OF THE IMRC 
    WARNING: KEEP FINGERS CLEAR OF THE MECHANISM. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
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.