Chrysler Neon 1995-1999 Repair Guide

Ignition Coil Pack

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TESTING



Coil one fires cylinders 1 and 4, coil two fires cylinders 2 and 3. Each coil tower is labeled with the number of the corresponding cylinder.

Primary Coil Resistance Test

See Figures 1 and 2

  1. Unplug the electrical connector from the ignition coil pack.
  2.  
  3. Measure the primary resistance of each coil. At the coil, connect an ohmmeter between the B+ pin and the pin corresponding to the cylinders in question.
  4.  



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Fig. Fig. 1: Ignition coil terminal identification

  1. The resistance on the primary side of each coil should be 0.45-0.65 ohms. Replace the coil if not within specifications.
  2.  



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Fig. Fig. 2: Detach the coil connector, then measure primary resistance with an ohmmeter

Secondary Coil Resistance Test

See Figures 3 and 4

  1. Disconnect the spark plug wires from the secondary towers of the ignition coil.
  2.  



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Fig. Fig. 3: Check secondary resistance between ignition coil towers 1 and 4, and coil towers 2 and 3

  1. Use an ohmmeter to measure the secondary resistance of the coil between towers 1 and 4, then between towers 2 and 3.
  2.  



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Fig. Fig. 4: To measure secondary resistance, place the ohmmeter leads on the 2 and 3 cylinder coil towers

  1. The secondary resistance should be 5,000-14,000 ohms. If resistance is not within specifications, the coil must be replaced.
  2.  

REMOVAL & INSTALLATION



See Figures 5, 6, 7, 8, 9 and 10

  1. Disconnect the negative battery cable.
  2.  



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Fig. Fig. 5: View of the ignition coil, fasteners and electrical connector-DOHC engine shown



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Fig. Fig. 6: On some vehicles, the ignition coil pack is mounted to a bracket-1335 SOHC engine shown

  1. Tag and unplug the spark plug wires from the ignition coil.
  2.  



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Fig. Fig. 7: Tag and disconnect the spark plug wires from the ignition coil

  1. Detach the electrical connector from the ignition coil.
  2.  



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Fig. Fig. 8: Unplug the ignition coil electrical connector

  1. Remove the ignition coil mounting nuts, then remove the ignition coil pack from the vehicle.
  2.  



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Fig. Fig. 9: Unfasten the ignition coil retaining nuts ...



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Fig. Fig. 10: ... then lift the ignition coil up off the mounting studs

To install:
  1. Install the ignition coil pack and secure with the mounting nuts.
  2.  
  3. Attach the electrical connector to the ignition coil.
  4.  
  5. Connect the spark plug wires to the coil, as tagged during removal. Make sure the wires are installed correctly and that the cables snap onto the towers.
  6.  
  7. Connect the negative battery cable.
  8.  

 
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