Upper Intake Manifold
WARNING: This page is about a different variant/trim than selected.
CAUTION:
If the engine has experienced a catastrophic failure, THE INTAKE MANIFOLD MUST BE REPLACED!
The upper intake manifold is an injection molded nylon composite design:
- The upper intake manifold is sealed to the lower intake manifold using six individual press-in-place port silicone gaskets
- Replace the gaskets whenever the upper intake manifold is removed from the engine
- There is a silencer pad positioned between the upper and lower intake manifolds for improved noise, vibration and harshness (NVH)
- The left cylinder head cover has two alignment posts to aid proper installation of the silencer pad
- The seven upper intake manifold fasteners thread directly into the composite lower intake manifold and are a self-taping design
- If the upper intake manifold is damaged or cracked, it must be replaced
- The Electronic Throttle Control (ETC) and Manifold Air Pressure (MAP) sensor are attached directly to the upper intake manifold
- The upper intake manifold also provides vacuum ports for brake booster, positive crankcase ventilation (PCV) and emissions control