2022 Kia Sorento Plug-In Hybrid SXFACTORY OEM SERVICE PROCEDURE

Spark Plug: Troubleshooting

  1. Check the DTC code using the KDS (Refer to "DTC INDEX (PHEV) ").
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  2. Check the connection status of the ignition coil connector (A).
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  3. Check the installation condition of the ignition coil (A).
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  4. Remove the spark plug.

    (Refer to Spark Plug - "REPAIR PROCEDURES ")

  5. Visual inspection of the spark plugs.

    Spark plugs point gap: 

    0.7 - 0.8 mm (0.027 - 0.031 in.)

    Symptom Suspected Area Correction
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    Melting Electrode    		 Abnormal Combustion, Over Heat Replace the Spark Plugs
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    Carbon and Foreign Matter
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    Ring Crack    		 Abnormal Combustion, External Shock
    G14937307Courtesy of KIA MOTORS AMERICA, INC.

    Vertical Crack    		 External Shock
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    Over Heat    		 Abnormal Combustion
    Symptom Suspected Area Correction
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    Poor Gap    		 Careless Replace the Spark Plugs
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    Flash Over    		 Excessive Electrode Wear Replace Spark Plugs, Ignition Coil
    G14937311Courtesy of KIA MOTORS AMERICA, INC.

    Stain    		 Remaining Oil Mist Reassemble the Spark Plugs
  6. Check the resistance between the spark plugs terminal (A) and probe (B) by using a multi-tester or a resistance meter.

    Specification  : 2 - 20 kΩ

    G14937312Courtesy of KIA MOTORS AMERICA, INC.
    NOTE:
    • Avoid the contact resistance between probe and side electrode (if contact occurs, measured value may not be correct).
    • Be careful not to damage center electrode while measuring resistance.
    G14937313Courtesy of KIA MOTORS AMERICA, INC.
  7. Test for changing position of each ignition coil.
  1. Remove the spark plug and ignition coil fitted to the misfired cylinder and exchange them with the one of other cylinders.

    (Refer to Spark Plug - "REPAIR PROCEDURES ")

    G14937314Courtesy of KIA MOTORS AMERICA, INC.
  2. Replace the spark plugs, if misfire moves along the spark plugs.
Factory Service Tools

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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.