Ignition Control Module: Service and Repair

Fig. 12 HEI distributor component replacement:

Fig. 13 H.E.I. wiring harness identification:

1. Disconnect wiring harness connector at side of distributor cap and remove distributor cap.
2. Remove rotor and disconnect wires from module terminals.
3. Remove two mounting screws and remove module, Fig. 12. Two types of H.E.I. wiring harness are used, Fig. 13. The second type is a wiring harness, connector and capacitor which is serviced as an assembly.
4. Reverse procedure to install. At installation, coat bottom of new module with dielectric lubricant (furnished with new module) to aid in heat transfer into distributor housing. Failure to apply lubricant will cause excessive heat at module and premature module failure.