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Home >> Ford >> 1983 >> Econoline E250, Van Display Extended, 5.0 F >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - DURA-Spark III >> Testing >> Ignition Coil Primary Resistance Check

Ignition Coil Primary Resistance Check

  1. Disconnect ignition coil connector. Connect ohmmeter leads to "BATT" and "TACH" terminals of ignition coil. Measure resistance, remove ohmmeter leads, and reconnect ignition coil connector.
  2. If resistance was 0.8-1.6 ohms, proceed to "Module-to-Coil Wire Voltage Check". If resistance was less than 0.8 ohm or greater than 1.6 ohms replace ignition coil.
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