SPARK PLUG REMOVAL/INSTALLATION [SKYACTIV-G 2.5T]
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1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)
2. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)
3. Remove the ignition coils/ion sensors. (See IGNITION COIL/ION SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)
4. Remove the spark plugs using a plug-wrench.
5. Install in the reverse order of removal.