88. Intake Manifold Installation

1. Install the lower intake manifold gasket.
2. Install the lower intake manifold.
3. Apply Threadlocker 272 GM P/N 12345493 to the bolt threads.

Notice: Refer to Fastener Notice in Service Precautions.





4. Install the lower intake manifold bolts including the two hidden bolts.
- Tighten the bolts in sequence to 15 Nm (11 ft. lbs.).





5. Install the EGR outlet pipe to the intake manifold.
6. Install the EGR outlet pipe bolt.
- Tighten the EGR outlet pipe bolt to 29 Nm (21 ft. lbs.).