Intake Manifold Installation

WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Lower Intake Manifold Gasket

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Install the lower intake manifold gasket.

Fig 2: Intake Manifold

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Install the intake manifold assembly.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the intake manifold bolts.
Tighten: Tighten the intake manifold bolts to 23 N.m (17 lb ft).

Fig 3: Clean Air PCV Hose

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Connect the fresh air positive crankcase ventilation (PCV) hose to the left camshaft cover fitting.

Fig 4: Dirty Air PCV Hose

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Connect the dirty air PCV hose to the intake manifold and the right camshaft cover fitting.

Fig 5: EVAP Solenoid Bold

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Install the evaporative (EVAP) solenoid.
Install the EVAP solenoid bolt.
Tighten: Tighten the EVAP solenoid bolt to 10 N.m (89 lb in).

Fig 6: EVAP Hose Bracket Bolt

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Connect and remove the intake manifold-to-solenoid EVAP hose to the intake manifold and to the EVAP solenoid.
Install the intake manifold-to-solenoid EVAP hose bracket bolt to the intake manifold.
Tighten: Tighten the intake manifold-to-solenoid EVAP hose bracket bolt to 10 N.m (89 lb in).

Fig 7: EVAP Hose

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Connect the vehicle-to-solenoid EVAP hose to the EVAP solenoid.
Install the hose clip to the intake manifold.

Fig 8: Brake Booster Hose

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Connect the brake booster hose to the upper intake manifold.