86. Intake Manifold Installation - Lower

Intake Manifold Installation - Lower





1. 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.
2. Install the lower intake manifold gaskets and seals.
3. Apply a drop of RTV GM P/N 12378479 (Canadian P/N 10953472) or equivalent to the four corners where the gaskets and seals meet.
4. Install the lower intake manifold.
5. Apply Threadlocker 272 GM P/N 12345493 (Canadian P/N 10953488) or the equivalent to the bolt threads.

6. Notice: Refer to Fastener Notice.

Install the lower intake manifold bolts.
^ Tighten the lower intake manifold bolts in sequence to 15 Nm (11 ft. lbs.).