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Kia Sorento: Spark Plug Inspection - Ignition System - Engine Electrical SystemKia Sorento: Spark Plug Inspection

Kia Sorento (XM, 2011-2015) Service Manual / Engine Electrical System / Ignition System / Spark Plug 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.
[Component Inspection]
1.
Check the spark plug for any damage on its thread and insulator.
If there is damage, replace the spark plug.
2.
Check the electrode. Measure the insulation resistance with an ohmmeter.
If the resistance is less than the specified value, adjust the electrode gap.
Specification: 10 MΩ or more

3.
Check the spark plug electrode gap.
If the gap is greater than the maximum, replace the spark plug.
Specification: 1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.)
  
    Item Specification Type FXU16HR11 Gap 1.0 ~1.1 mm (0.0394 ~ 0.0433 in.)...
    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. ...
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