SPARK PLUG REMOVAL/INSTALLATION [AJ (3.0L Duratec)]

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1. Disconnect the negative battery cable.

2. LH: Remove the plug hole plate.

RH: Remove the dynamic chamber. (See DYNAMIC CHAMBER REMOVAL/INSTALLATION [AJ (3.0L Duratec)].)

3. Remove the ignition coil. (See IGNITION COIL REMOVAL/INSTALLATION [AJ (3.0L Duratec)].)

4. Remove the spark plug using a plug wrench.

Caution
• Apply small amount of the specified dielectric grease to the inside of the ignition coils, then install the ignition coils to the spark plugs.
- Specified grease: Motorcraft XG-3A

5. Install in the reverse order of removal.

Spark plug tightening torque
9-20 N·m {1.0-2.0 kgf·m, 7-14 ft·lbf}