Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2022 Kia K5 EXFACTORY OEM SERVICE PROCEDURE

Spark Plug: Troubleshooting

Check the DTC code using the KDS (Refer to "DTC guide").

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Check the connection status of the ignition coil connector (A).

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Check the installation condition of the ignition coil (A).

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Remove the spark plug
(Refer to Spark Plug - "Removal ")
Visual inspection of the spark plugs.
Spark plugs point gap:

0.7 - 0.8 mm (0.0275 - 0.0314 in.)

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Courtesy of KIA MOTORS AMERICA, INC.

Check the resistance between the spark plug terminal (A) and probe (B)

Specifications: 2 - 20 kΩ

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NOTE:

Avoid the contact resistance between probe and spark plugs.(when it occur, measured value is not sabalized.)

Be carefule not to damage center electrode while measuring resistance.

G00620897

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Test for changing position of each ignition coil.

Remove the spark plug and ignition coild fitted to the misfired cylinder and exchange them with one of other cylinders.

(Refer to Spark Plug - "Removal ")

G00620898

Courtesy of KIA MOTORS AMERICA, INC.

Replace the spark plugs, if misfire moves along the spark plugs.

Factory Service Tools

Use the Manual With the Right Hardware

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

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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.