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.
MOTORCRAFT DURA-Spark II Ignition System: Operation: Distributor
The distributor contains a pick-up coil which produces a magnetic field. The armature turning with the distributor shaft causes the field to collapse. The module senses the make and break of the magnetic field and signals the ignition coil to turn on and off. The distributor cap is large to provide better insulation for the very high secondary voltage.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.