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Home >> Ford >> 1977 >> Bronco Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Ignition System >> MOTORCRAFT DURA-Spark II Ignition System >> Testing >> Ignition Coil Test
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Ignition Coil Test

With ignition off, check secondary resistance between pin No. 4 and coil tower. Resistance should be 7700-9300 ohms. Check primary resistance between pins No. 1 and 4. Resistance should be 1.13-1.23 ohms. If coil resistance is not within limits, bench test coil using standard testing procedures.