Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2010MOUNTAINEER AWD V6-4.0LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMIGNITION CABLESERVICE AND REPAIR
2010 Mercury Mountaineer AWD V6-4.0L
Ignition Cable: Service and Repair
2010 Mercury Mountaineer AWD V6-4.0LSECTION Service and Repair
Spark Plug Wires
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 ignition coil terminal. For additional information, refer to the Cylinder-to-Coil Terminal Relationship, Engine Ignition Engine Ignition in the Description and Operation.
Squeeze the locking tabs and twist while pulling upward to disconnect the 6 spark plug wires from the ignition coil.
2. Detach the spark plug wires from the spark plug wire retainers.
3. 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.
With a twisting motion, use the Spark Plug Wire Remover to pull the spark plug wires from the spark plugs.
4. NOTE: Apply silicone dielectric compound to the inside of the spark plug wire boots.
To install, reverse the removal procedure.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.