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.
Replacing Intake Manifold - Upper: Installation
2006 Buick Allure CXSSECTION Installation
WARNING: This page is about a different variant/trim than selected.
- If the manifold was replaced install the following:
- Vacuum source manifold
- PCV valve
- MAP sensor
- Throttle body
- Install the upper-to-lower intake manifold carrier gasket to the upper intake manifold.
- Carefully install the upper intake manifold (5) onto the lower intake manifold. Ensure that the alignment pins in the upper intake manifold align with the holes in the lower intake manifold.
- Apply thread lock compound GM P/N 12345382 (Canadian P/N 10953489), or equivalent, to the threads of the bolts (1, 4) and the studs (2, 3).
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.