Pacifica, 2003-2005

Ignition Coil

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Removal & Installation



3.5L Engine
Front
  1. Remove the electrical connector from the ignition coil.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Remove the upper intake manifold, as outlined in Engine Mechanical.
    NOTE
    Prior to removing the ignition coils, spray compressed air around the coil area and spark plug.

  6.  
  7. On 3.5L engines, it is necessary to loosen the screws by alternating back and forth. Do not lose the spacers under the coil when loosening the screws.
  8.  
  9. Remove the ignition coil.

    Click image to see an enlarged view

    Fig. Removing the front ignition coils-3.5L engine

    Removing the front ignition coils-3.5L engine
  10.  

To install:

  1. Install the ignition coil.
  2.  
  3. Hand-tighten coil screws and tighten to 60 inch lbs. (6.7 Nm)..
  4.  
  5. Install and lock the electrical connector to the ignition coil.
  6.  
  7. Install the upper intake manifold.
  8.  
  9. Connect the negative battery cable.
  10.  

Rear
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the electrical connector from the ignition coil.
    NOTE
    Prior to removing the ignition coils, spray compressed air around the coil area and spark plug.

  4.  
  5. It is necessary to loosen the screws by alternating back and forth. Do not lose the spacers under the coil when loosening the screws.
  6.  
  7. Remove the ignition coil.

    Click image to see an enlarged view

    Fig. Removing the rear ignition coils-3.5L engine

    Removing the rear ignition coils-3.5L engine
  8.  

To install:

  1. Install the ignition coil.
  2.  
  3. Hand tighten coil screws and tighten to 60 inch lbs. (6.7 Nm).
  4.  
  5. Install and lock the electrical connector to the ignition coil.
  6.  
  7. Connect the negative battery cable.
  8.  

3.8L Engine
  1. Disconnect the negative battery cable.
  2.  
  3. Unlock and disconnect the electrical connector from ignition coil.
  4.  
  5. Grasping the spark plug cable, twist the assembly 1/2 turn and pull the cable from the ignition coil.
  6.  
  7. Remove the nuts from the mounting studs.
  8.  
  9. Pull coil assembly straight up and off of mounting studs.

    Click image to see an enlarged view

    Fig. Unlock and disconnect the electrical connector from the ignition coil-3.8L engine

    Unlock and disconnect the electrical connector from the ignition coil-3.8L engine
  10.  

To install:

  1. Install ignition coil over mounting studs.
  2.  
  3. Connect and lock the electrical connector to ignition coil.
  4.  
  5. Install mounting nuts and tighten to 105 inch lbs. (11.5 Nm).
  6.  
  7. Install ignition cables to coil assembly.
  8.  
  9. Connect the negative battery cable.
  10.  

 
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