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.
Installing Intake Manifold - Lower (L26): Installation
2006 Buick Allure CXSSECTION Installation
WARNING: This page is about a different variant/trim than selected.
- Clean the lower intake manifold sealing surface using GM P/N 12346139 (Canadian P/N 10953463) or equivalent prior to installing any seals or gaskets.
- Install the lower intake manifold gasket.
- Install the lower intake manifold.
- Apply threadlocker 272 GM P/N 12345493, (Canadian P/N 10953488) or the equivalent to the bolt threads.
- Install the lower intake manifold bolts.
Tighten: Tighten the lower intake manifold bolts in sequence to 15 N.m (11 Ft. Lbs.).
- Install the generator brace bracket (571).
- Install the generator brace bracket bolts (569, 570).
Tighten: Tighten the generator brace bracket bolts to 50 N.m (37 Ft. Lbs.).
NOTE:
Refer to Fastener Notice
in General Information.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.