GM Cavalier/Sunbird/Skyhawk/Firenza 1982-1994

Ignition Module



See Figure 1

It is imperative that silicone lubricant be used under the module when it is installed, to prevent module failure due to overheating.

  1. Disconnect the negative battery cable.
  3. Remove the distributor from the vehicle. For details, please refer to the procedure later in this section. Remove the cap and rotor.
  5. If the distributor has a Hall Effect Switch, remove the switch by unfastening the retaining screws. Matchmark the gear and shaft for installation purposes, then drive the roll pin from the gear and remove the shaft assembly.
  7. Remove the thin "C" washer (waved retaining ring) or pry the retainer off (depending upon application), then lift the pick-up coil straight up to remove from the distributor.
  9. Detach the wiring connector(s) from the ignition module. Unfasten the two screws, then remove the module and copper shield (if used).

Click image to see an enlarged view

Fig. Fig. 1: Before installing the ignition module, apply a suitable silicone lubricant to the module for heat dissipation - type three distributor shown

To install:
  1. Using a clean, dry rag, wipe the distributor base and module clean, the apply a thin coat of a suitable silicone lubricant between the module and the base for heat dissipation.
  3. Position the module and copper shield (if used) to the base, then attach the wiring connectors to the module.
  5. Install the pickup coil and the thin "C" washer or retainer.
  7. Assemble the shaft, gears parts and roll pin. Use the marks made during removal for alignment purposes.
  9. If equipped, install the Hall Effect Switch.
  11. Spin the distributor shaft to be sure the teeth do not touch. If the teeth make contact, loosen, then re-tighten the pickup coil teeth and Hall Effect Switch teeth (if used) to eliminate contact.
  13. Fasten the rotor and cap, then install the distributor assembly. For details, please refer to the procedure located later in this section.
  15. Connect the negative battery cable.