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 MANUALSFORD2012EXPLORER FWD V6-3.5LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTUNE-UP AND ENGINE PERFORMANCE CHECKSSPARK PLUGSERVICE AND REPAIRSPARK PLUGS
2012 Ford Explorer FWD V6-3.5L
Spark Plugs
2012 Ford Explorer FWD V6-3.5LSECTION Spark Plugs
Spark Plugs
Removal
1. Remove the 6 ignition coil-on-plugs. REFER to Ignition Coil-On-Plug - LH and/or REFER to Ignition Coil-On-Plug - RH .
2. NOTICE: Only use hand tools when removing or installing the spark plugs or damage can occur to the cylinder head or spark plug.
NOTICE: The spark plug procedure must be followed exactly or damage to the cylinder head and spark plug will result.
NOTICE: Do not remove the spark plugs when the engine is hot or cold soaked. Spark plug thread or cylinder head damage can occur. Make sure the engine is warm (hand touch after cooling down) prior to spark plug removal.
NOTE: Use compressed air to remove any foreign material in the spark plug well before removing the spark plugs.
Remove the 6 spark plugs.
3. Inspect the spark plugs. REFER to Spark Plug Inspection Testing and Inspection.
Installation
1. Adjust the spark plug gap as necessary.
1.25 mm (0.0492 in) - 1.35 mm (0.0531 in).
2. NOTICE: Only use hand tools when removing or installing the spark plugs or damage can occur to the cylinder head or spark plug.
NOTICE: The spark plug procedure must be followed exactly or damage to the cylinder head and spark plug will result.
Install the 6 spark plugs.
- Tighten to 15 Nm (133 lb-in).
3. Install the 6 ignition coil-on-plugs. REFER to Ignition Coil-On-Plug - LH and/or REFER to Ignition Coil-On-Plug - RH .
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.