Intake Manifold Replacement - Left Side LBZ, LLY

1. Remove the center intake manifold. Refer to Center Intake Manifold Replacement .
2. Remove the left fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement - Bank 2 .
3. Remove the intake manifold bolts/nuts.

Important: The intake manifold uses sealer. Pry at the area by the fuel rail bolt holes in order to avoid damage to the sealing surface.

4. Remove the intake manifold.
5. To prevent entry of debris into the cylinder head, tape the openings.
6. If required, clean and inspect the intake manifold. Refer to Intake Manifold Cleaning and Inspection .

1. Apply a 2-3 mm (1/8 in) wide, by 0.5-1.5 mm (1/16 in) high bead of sealant to the intake manifold. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.



2. Install the intake manifold.
3. Install the intake manifold bolts/nuts.

Notice: Refer to Fastener Notice in the Preface section.




4. Tighten the intake manifold bolts/nuts in the sequence shown.

Tighten
Tighten the bolts/nuts to 21 N·m (15 lb ft).

5. Install the left fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement - Bank 2 .
6. Install the center intake manifold. Refer to Center Intake Manifold Replacement .