Kia Sorento: Spark Plug On Vehicle Inspection

On Vehicle Inspection

1.	Accelerate the engine to about 3,000 rpm 3 times or more.

2.	Remove the spark plug.

3.	Check the spark plug visually. If the electrode is dry, the spark plug is normal. If the electrode is wet, check the damage and electrode gap as below.

[Inspection component]

1.	Check the spark plug for any damage on its thread and insulator. If there is damage, replace the spark plug.

Check the electrode. Measure the insulation resistance with an ohmmeter.

Specification (MΩ) : 10 or more

Engine Electrical System — Ignition System / Spark Plug / On Vehicle Inspection illustration

Check the spark plug electrode gap.

If the gap is greater than the maximum, replace the spark plug.

Specification [mm(in.)] : 1.0 - 1.1 (0.0394 - 0.0433)

•	If adjusting the gap of a new spark plug, bend only the base of the ground electrode. Do not touch the tip.

•	Never attempt to adjust the gap on a used plug.

Engine Electrical System — Ignition System / Spark Plug / On Vehicle Inspection illustration

Troubleshooting 1. Check the DTC code with the KDS (Refer to "DTC guide"). 2. ...

Removal 1. Disconnect the battery negative ( - ) terminal. 2. Remove the engine cover. ...

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