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.
Installation Procedure
2008 Pontiac Grand Prix BaseSECTION Installation Procedure
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
DO NOT reuse the throttle body gasket. Install a NEW gasket during assembly.
- Install a NEW throttle body gasket (509). Align the locating tab of the gasket with the notch in the manifold.
- Position the throttle body (508) to the intake manifold.
- Install the throttle body bolts (538).
Tighten: Tighten the bolts to 10 N.m (89 lb in).
- Connect the EVAP canister purge tube to the throttle body. Refer to Plastic Collar Quick Connect Fitting Service .
NOTE:
Refer to Fastener Notice
.
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.