Upper Intake Manifold: Removal

All engines 

1. Remove the air cleaner outlet pipe. For additional information, refer to INTAKE AIR DISTRIBUTION AND FILTERING - 3.5L article.
2. Disconnect the throttle body (TB) electrical connector.
3. Disconnect the evaporative emissions (EVAP) tube from the intake manifold. For additional information, refer to FUEL SYSTEM - GENERAL INFORMATION article.
4. Disconnect the brake booster vacuum hose from the intake manifold.
5. Disconnect the PCV tube from the PCV valve.

Early build engines 

6. Remove the upper intake manifold long support bracket bolt.
7. Disconnect the heated PCV electrical connector.

All engines 

8. Detach all the wiring harness retainers from the upper intake manifold.
9. If equipped, detach the cylinder block heater wiring harness retainer from the upper intake manifold.
10. Remove the upper intake manifold short support bracket bolt.
11. Remove the 6 bolts and the upper intake manifold.
    • Remove and discard the gaskets.
    • Clean and inspect all of the sealing surfaces of the upper and lower intake manifold.