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

Resistance between pin No. 4 and coil battery terminal should be 0.7-1.7 ohms. If not within specifications, check and/or replace ignition resistance wire.