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Ignition Coil Resistance Check - 4000S

  1. Turn ignition off and disconnect all wires from ignition coil. Using an ohmmeter, measure resistance between coil primary terminals No. 1 and 15. Ohmmeter reading must be .52-.76 ohms.
  2. Measure resistance between coil tower and negative coil terminal No. 1. Ohmmeter reading must be 2400-3500 ohms. If readings are incorrect, replace ignition coil.
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