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.
Removal Procedure
2008 Pontiac Grand Prix BaseSECTION Removal Procedure
WARNING: This page is about a different variant/trim than selected.
IMPORTANT:
It is necessary to record the remaining engine oil life. If the replacement module is not programed with the remaining engine oil life, the engine oil life will default to 100 percent. If the replacement module is not programmed with the remaining engine oil life, the engine oil will need to be changed at 5 000 km (3,000 mi) from the last engine oil change.
- Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life, if required.
- Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (LS4) .
- Remove the left front inner fender brace. Refer to Front Fender Upper Diagonal Brace Replacement .
- Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
- Disconnect the ECM electrical connectors (2).
- Remove the ECM from the air cleaner lower housing.
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.