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Home >> Kia >> 2004 >> Optima EX, 2.4 6 >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Ignition System >> Ignition System >> Spark Plug >> Inspection
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Spark Plug: Inspection

  1. Remove the spark plug and connect to the spark plug cable.
  2. Ground the spark plug outer electrode, and crank the engine.
  3. Check to be sure that there is an electrical discharge between the electrodes at this time.
    Fig 1: Checking Spark Plugs
    G00903316Courtesy of KIA MOTORS AMERICA, INC.
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