Kia Sorento: Spark Plug Cleaning - Ignition System - Engine Electrical System - Kia Sorento XM 2011-2019 Service ManualKia Sorento: Spark Plug Cleaning

Second Generation XM (2011-2019) / Kia Sorento XM 2011-2019 Service Manual / Engine Electrical System / Ignition System / Spark Plug Cleaning

The combustion temporarily becomes unstable, due to the aged fuel and the carbon deposits accumulated on the spark plug(s) after long-term storage.
[1st Method]
1.
Start the engine and keep the engine running at idle for 2 minutes.
2.
Step on the accelerator pedal and hold it steady at 4500 rpm with the shift lever in N position to warm up  the engine until the temperature of the engine coolant reaches 80∞C.
3.
Keep the engine running at 2500~3000 rpm in the N position for 15 minutes.

[2nd Method]
  
Х
The 2nd method should be performed only if the 1st method fails (the misfire-related codes recur).
1.
Start the engine and keep the engine running at idle for 2 minutes.
2.
Drive the vehicle for over 20 minutes, keeping the engine speed above 3500 rpm.
  
Х
If equipped with manual transaxle, shift the gear properly for keeping the engine speed above 3500 rpm.

Spark Plug Inspection
[On vehicle inspection] 1. Accelerate the engine to about 3,000 rpm 3 times or more. 2. Remove the spark plug. ...

Spark Plug Removal
1. Remove the ignition coil. (Refer to Ignition System - "Ignition Coil") 2. Using a spark plug wrench, remove the spark plu ...

See also:

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The GDI injector is similar to a standard injector, but sprays fuel at a much higher pressure directly into the combustion chamber and has a swirl disc to get the fuel swirling as it exits th ...

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