CTS V6-2.8L (2006)
Installation Procedure
1. If the upper intake manifold is being replaced, assemble the intake manifold.
2. Install a NEW upper intake manifold gasket.
3. Install the upper intake manifold.
Notice: Refer to Fastener Notice.
Important: Tighten the intake manifold bolts in a circular pattern starting at the center (long bolts) and moving outward.
4. Install the upper intake manifold bolts.
Tighten the bolts to 23 N.m (17 lb ft).
5. Install the injector harness bracket and bolt.
Tighten the bolt to 10 N.m (89 lb in).
6. Install the left bank ignition coil wiring harness to the bracket.