CTS V6-3.2L VIN N (2003)
1. Remove the masking from the cylinder head intake ports and ensure the sealing surfaces are clean and dry.
Important: Ensure the seals on the intake manifold flange are properly seated and installed.
2. Position the intake manifold flange (2) to the cylinder heads.
3. Apply thread adhesive GM P/N 12345382, (Canadian P/N 10953489) to the intake manifold flange bolts.
Intake Manifold Flange Bolt Torque Sequence
Notice:
Refer to Fastener Notice in Service Precautions.
See: Service Precautions/Vehicle Damage Warnings/Fastener Notice
4. Install the intake manifold flange bolts.
Tighten the intake manifold flange bolts in sequence to 20 Nm (15 ft. lbs.).
5. Install the intake manifold.
