Federal Vehicles
IGNITION COIL INSPECTIONNOTICE:"Cold" and "Hot" in the following sentences express the temperature of the coils themselves."Cold" is from - 10°C (14°F) to 50°C (122°F) and "Hot" is from 50°C (122°F) to 100°C (212°F).
1. Disconnect distributor connectors.
2. Remove distributor cap.
3. Remove rotor.
4. Remove ignition coil dust cover.
5. Inspect primary coil resistance.
- Using an ohmmeter, measure the resistance between the positive (+) and negative (-) terminals.
Primary Coil resistance:
Cold: 0.36 - 0.65 Ohms
Hot: 0.45 - 0.65 Ohms
^ If the resistance is not as specified, replace the ignition coil.
6. Inspect secondary coil resistance.
- Using an ohmmeter, measure the resistance between positive (+) and high-tension terminals.
Secondary coil resistance:
Cold: 9.0 - 15.4 k Ohms
Hot: 11.4 - 18.1 k Ohms
^ If the resistance is not as specified. replace the ignition coil.