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 MANUALSFORD2010MUSTANG BASE, 2D COUPE, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 9 (ENGINE IGNITION SYSTEM - 4.6L (3V))DESCRIPTION AND OPERATIONENGINE IGNITION
2010 Ford Mustang Base, 2D Coupe, Automatic
Engine Ignition
2010 Ford Mustang Base, 2D Coupe, AutomaticSECTION Engine Ignition
WARNING: This page is about a different variant/trim than selected.
The electronic ignition system is a coil-on-plug ignition system. The coil-on-plug ignition system consists of the following components:
- Crankshaft Position (CKP) sensor
- Ignition coils
- Spark plugs
The CKP sensor:
- is a variable reluctance sensor.
- is triggered by a 36-minus-1 tooth sensor ring mounted on the crankshaft.
- provides base timing and crankshaft speed (RPM) to the PCM.
The 8 separate ignition coils:
- change low voltage to high voltage pulses based on signals from the PCM.
- produce the high voltage pulses to the spark plugs.
- are connected directly to each spark plug.
The spark plugs:
- change high voltage pulses into a spark which ignites the fuel and air mixture.
- originally equipped on the vehicle have a platinum-enhanced active electrode 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.