Ignition Control Module: Service and Repair

2002 Chevrolet Monte Carlo V6-3.4L VIN ESECTION Service and Repair
IGNITION CONTROL MODULE REPLACEMENT

REMOVAL PROCEDURE




1. Turn OFF the ignition.
2. Disconnect all the electrical connectors at the ignition control module (ICM).
3. Note position of spark plug wires for installation and disconnect the spark plug wires from the ignition coils.
4. Remove the screws securing the coil assemblies to the ICM.
5. Disconnect the coils from the ICM.
6. Remove the ICM from the module mounting bracket.

INSTALLATION PROCEDURE




1. Install the ICM on the module mounting bracket.
2. Install the coils to the ICM.

NOTE: Refer to Fastener Notice in Service Precautions.

3. Install the screws through the coils and the module into the module mounting bracket.

Tighten
Tighten the screws to 4.5 N.m (40 lb in).

4. Connect the spark plug wires as noted during the removal.
5. Connect the electrical connectors to the ICM.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.