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.
2005 Pontiac Grand Prix BaseFACTORY OEM SERVICE PROCEDURE
Removal Procedure
- Remove the 14-way electrical connector from the ignition control module (ICM).
- Disconnect the spark plug wires from the coil assemblies. Before removing the wires, note the position of the wires.
- Remove the ICM nuts (2).
- Remove the ICM (1) from the bracket.
- Remove the ignition coil screws (1).
- Remove the ignition coils (2) from the ICM (3).
Factory Service Tools
Use the Manual With the Right Hardware
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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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