Intake Manifold Installation

WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Intake Manifold

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Ensure the NEW gaskets are installed in the intake manifold.
Place the intake manifold in position.

Fig 2: Intake Manifold Bolts

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Loosely install the 10 bolts attaching the intake manifold to the cylinder heads.

Fig 3: Identifying Intake Manifold Bolt Tightening Sequence

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CAUTION: Refer to Fastener Caution .

Tighten the intake manifold bolts in sequence (1-10) to 10 N.m (89 lb in).
Lubricate the intake manifold fuel injector bores with light mineral oil GM P/N 12345610, (Canadian P/N 993193), clean engine oil or equivalent.

Fig 4: Fuel Rail & Injector Assembly

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NOTE: DO NOT force the injectors into position.

Install the entire fuel rail and injector assembly into the intake manifold by pressing the fuel rail and injector simultaneously into the correct position.

Fig 5: Fuel Rail To Intake Manifold Bolts

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Install the bolts attaching the fuel rail to the intake manifold and tighten to 10 N.m (89 lb in).

Fig 6: Sight Shield Bracket & Nuts

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Install the sight shield bracket.
Install the sight shield bracket nuts and tighten to 10 N.m (89 lb in).

Fig 7: PCV Dirty Air Tube

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Connect the positive crankcase ventilation (PCV) dirty air tube to the camshaft cover.

Fig 8: PCV Fresh Air Tube

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Connect the PCV fresh air tube to the camshaft cover.