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 MANUALSFORD2012F 450 2WD SUPER DUTY V10-6.8LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMSPARK PLUGSERVICE AND REPAIRSPARK PLUGS
2012 Ford F 450 2WD Super Duty V10-6.8L
Spark Plugs
2012 Ford F 450 2WD Super Duty V10-6.8LSECTION Spark Plugs
Spark Plugs
Removal and Installation
1. Remove the ignition coil-on-plugs. For additional information, refer to Ignition Coil-On-Plug Ignition Coil-On-Plug.
2. 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.
NOTICE: Only use hand tools when removing or installing the spark plugs or damage can occur to the cylinder head or spark plug.
NOTE: Use compressed air to remove any foreign material from the spark plug well before removing the spark plugs.
NOTE: If an original spark plug is used, make sure it is installed in the same cylinder from which it was taken. New spark plugs can be used in any cylinder.
NOTE: Refer to Specifications for correct spark plug identification.
Remove the spark plugs.
- To install, tighten to 12 Nm (106 lb-in).
3. Inspect the spark plugs. Install new spark plugs as necessary.
4. 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.