LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2008 >> Optima V6-2.7L >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Spark Plug >> Testing and Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Spark Plug: Testing and Inspection









INSPECT SPARK PLUG
1. Remove the ignition coil connector(A).




2. Remove the ignition coil.
3. Using a spark plug socket, remove the spark plug.

CAUTION:
Be careful that no contaminates enter through the spark plug holes.

4. Inspect the electrodes (A) and ceramic insulator (B).




INSPECTION OF ELECTRODES





5. Check the electrode gap (A).

Standard : 1.0 - 1.1 mm (0.0394 - 0.0433 in.)