SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD2021EDGE SE, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 473 (ENGINE CONTROLS - PINPOINT TESTS (DIESEL))PINPOINT TESTS AR: MISFIRETEST PROCEDURE
2021 Ford Edge SE, 4WD

Test Procedure

2021 Ford Edge SE, 4WDSECTION Test Procedure
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2019 Ford Transit-350 HD, 2019 Ford Transit-350, 2019 Ford Transit-250, 2019 Ford Transit-150, and 2019 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
  1. AR1 CHECK FOR DTCS 

    Are DTCs P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 or P0308 present? 

    Yes No
    GO to  AR3. GO to  AR2.
  2. AR2 RECREATE THE MISFIRE SYMPTOM USING FREEZE FRAME AND CUSTOMER INFORMATION 
    NOTE: To recreate the original conditions that set the DTC or caused the symptom, the vehicle may require driving.
    • Access the misfire freeze frame data (if available) and record the operating conditions.
    • Obtain information from the customer information worksheet or any other available data from the customer.
    • Recreate the misfire symptom using the freeze frame and customer information.

    Can the symptom be recreated? 

    Yes No
    GO to  AR3. Unable to duplicate or identify the concern at this time. REFER to NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHART INDEX , if a driveability concern exists.
  3. AR3 CHECK FOR OTHER NON-MISFIRE CONTINUOUS MEMORY DTCS 

    Are there any non-misfire continuous memory DTCs present? 

    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS . GO to  AR4.
  4. AR4 CHECK FOR DTCS 
    • Carry out the PCM KOEO self-test.
    • Carry out the PCM KOER self-test.
    • Carry out the injector electrical self-test.

    Are any DTCs present other than P0300, P0301, P0302, P0303, P0304 P0305, P0306, P0307 or P0308? 

    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS . GO to  AR5.
  5. AR5 CHECK THE LOW PRESSURE FUEL SYSTEM 
    NOTE: The fuel pump runs for 30 seconds then shuts off at ignition ON, engine OFF.
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.