Chrysler Full-Size Trucks 1967-1988 Repair Guide

Ignition Module

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REMOVAL & INSTALLATION



Carbureted Engines

See Figures 1 and 2

  1. Disconnect the negative battery cable.
  2.  
  3. Check to see if your model is equipped with a small screw through the connector. If so, carefully remove it.
  4.  



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Fig. Fig. 1: Electronic control unit

  1. Unplug the control unit connector and remove the mounting screws.
  2.  



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Fig. Fig. 2: Electronic control unit connector

  1. Reinstall the mounting screws on the new control unit and plug in connector.
  2.  
  3. Connect the negative battery cable.
  4.  

Fuel Injected Engines

This unit is called a, Single Module Engine Controller (SMEC).


WARNING
Do not remove the grease from the 14-way connector or the connector terminal in the computer. The grease is used to prevent corrosion of the terminals. There should be at least a1/8in. (3.1mm) coating of grease on the bottom of the connector terminals. If not, apply a liberal coating of Mopar Multi-purpose grease part number 2932524 or equivalent, over the entire end of the connector plug.

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the air cleaner duct from the SMEC.
  4.  
  5. Remove the 3 module retaining screws.
  6.  
  7. Remove the 14-way and 60-way connectors from the SMEC.
  8.  

To install:
  1. Connect the 14-way and 60-way connectors to the SMEC.
  2.  
  3. Install and tighten the module retaining screws.
  4.  
  5. Install the air cleaner duct to the SMEC.
  6.  
  7. Connect the negative battery cable.
  8.  

 
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