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 Impala SSFACTORY OEM SERVICE PROCEDURE
Installation Procedure
- Position the spark plug wires to the engine.
- Install the spark plug wire retaining clips from the rear, front and top of the engine.
- Install the spark plug wires to the ignition coil in the proper position.
- Install the spark plug wires (1, 3, 5) to the spark plugs in the proper position at the front of the engine.
- Install the spark plug wires (2, 4, 6) to the spark plugs in the proper position at the rear of the engine.
- Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical - 3.8L.
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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