Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2004 Chevrolet Monte Carlo LSFACTORY OEM SERVICE PROCEDURE

Removal Procedure

Disconnect the ignition control module (ICM) electrical connectors.
Note position of spark plug wires for installation and disconnect the spark plug wires from the ignition coils.

Fig 1: View Of Spark Plug Wire Connections To Ignition Coils

Courtesy of GENERAL MOTORS CORP.

Remove the ignition coil screws (1).
Remove the ignition coils (2) from the ICM (3).
Remove the ICM from the module mounting bracket.

Fig 2: View Of Ignition Coil Module And Module Mounting Bracket

Courtesy of GENERAL MOTORS CORP.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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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.

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