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Home >> Ford >> 1987 >> Econoline E350, Van Display Extended, 6.9 1 >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - DURA-Spark II >> Testing >> Ignition Coil Secondary Resistance

Ignition Coil Secondary Resistance

  1. Disconnect and inspect ignition coil connector and coil wire. Connect ohmmeter leads to ignition coil "BATT" terminal and to high voltage terminal.
  2. If resistance is 7700-10,500 ohms, coil is okay. Proceed to MODULE-TO-COIL WIRE  test. If resistance is below 7700 or greater than 10,500 ohms, replace ignition coil. After test, connect coil wire.
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