Explorer 4WD V6-4.0L (2009)
Spark Plug: Service and Repair
Spark Plugs
Spark Plugs
Removal and Installation
1. NOTICE: It is important to twist the spark plug wire boot while pulling upward to avoid possible damage to the spark plug wire.
NOTE: Spark plug wires must be connected to the correct spark plug. Refer to the Cylinder-to-Coil Terminal Relationship, Engine Ignition See:
Powertrain Management/Ignition System/Description and Operation in the Description and Operation.
With a twisting motion, use the Spark Plug Wire Remover to pull the spark plug wire from the spark plug.
2. NOTE: Use compressed air to remove any foreign material from the spark plug wells before removing the spark plugs.
Remove the spark plugs.
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To install, tighten to 17 Nm (150 lb-in).
3. Use a suitable spark plug gap tool to check and adjust the spark plug gap.
4. NOTE: Apply silicone dielectric compound to the inside of the spark plug wire boots.
To install, reverse the removal procedure.