Spark Plug Removal and Replacement
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Park the vehicle on a flat, level surface.
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Make sure the vehicle is in PARK and remove the key.
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Remove the cargo box to access the vehicle’s engine. See the Cargo Box Removal section for details.
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Remove the two fasteners holding the plug shield 1 in place.
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Remove the two plug covers 2.
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Clean out plug wells with compressed air to prevent any loose dirt or debris from falling into the cylinders.
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Rinse plug wells with water and dry with compressed air.
NOTICESpark plug wells have drain holes built into the cylinder head to allow water to drain out.
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Loosen the spark plugs 3 using a 5/8” spark plug socket with an extension and remove from the vehicle.
TIPIf reusing, take note of the cylinders the spark plugs were installed in for reinstallation. -
Inspect the electrodes for wear and carbon buildup. The spark plug should have a sharp outer edge with no rounding or erosion.
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Clean with electrical contact cleaner or a glass bead spark plug cleaner only.
IMPORTANTA wire brush or coated abrasive should not be used.
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Measure gap with a wire gauge. Adjust gap if necessary by carefully bending the side electrode.
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If necessary, replace the spark plug with proper type.
IMPORTANTSevere engine damage could occur if the incorrect spark plug is used.
Recommended Spark Plug:
NGK® MR7F -
Apply a small amount of dielectric grease to the coil end where it connects to the spark plug.
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Install the spark plugs into the engine and torque to specification.
TORQUESpark Plug:
9 ft-lbs (12 N·m)
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Verify that the connections are properly secured ensuring they are clicked into place.
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Reinstall the two plug covers.
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Reinstall the plug shield. Torque fasteners to specification.
TORQUEPlug Shield Fasteners:
7 ft-lbs (10 N·m)
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Reinstall the cargo box. Torque fasteners to specification.
TORQUECargo Box Fasteners:
88 in-lbs (10 N·m)
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Start the engine to ensure proper operation.