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.
1992 Geo Metro XFiFACTORY OEM SERVICE PROCEDURE
Ignition Coil Resistance
- Disconnect negative battery cable. Remove protective cap from ignition coil. Disconnect coil high tension wire from ignition coil.
- Remove wires from positive and negative terminals (primary wires) of ignition coil. Using ohmmeter, check primary resistance between positive and negative wire terminals (primary terminals) of ignition coil.
- Check secondary resistance between ignition coil high tension wire terminal (secondary terminal) and primary positive terminal. Replace ignition coil if readings are not within specification. See IGNITION COIL RESISTANCE table.
IGNITION COIL RESISTANCE
| Application | Primary | Secondary |
|---|---|---|
| Metro | 1.33-1.55 | 10,700-14,500 |
Factory Service Tools
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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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