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 150 2WD V8-6.2LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMDESCRIPTION AND OPERATIONENGINE IGNITION
2012 Ford F 150 2WD V8-6.2L
Engine Ignition
2012 Ford F 150 2WD V8-6.2LSECTION Engine Ignition
Engine Ignition
The electronic ignition system is a coil-on-plug ignition system. The coil-on-plug ignition system consists of the:
- eight ignition coil-on-plugs.
- eight ignition wires.
- eight upper spark plugs.
- eight lower spark plugs.
The 8 separate ignition coil-on-plugs:
- change low voltage signals from the PCM to high voltage pulses.
- produce the high voltage pulses to the spark plugs.
- are connected directly to the upper spark plug.
- are connected by an ignition wire to the lower spark plug.
The 16 spark plugs:
- change high voltage pulses into a spark which ignites the fuel and air mixture.
- originally equipped on the vehicle have platinum-enhanced electrodes for long life.
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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.