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.
Ignition Coils
Turn ignition off. Disconnect wires from ignition coil. Using an ohmmeter, check primary coil resistance on ignition coil. See Fig 1. For resistance specifications, see IGNITION COIL RESISTANCE table.
| Application | (1) Ohms | ||
|---|---|---|---|
| Primary Circuit | .30-.60 | ||
| Secondary Circuit | 9000-15,000 | ||
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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.
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