88. Intake Manifold Installation - Upper RPO L56

1. Apply the silicone sealant GM P/N 9985943, or equivalent to the turbocharger outlet.
2. Install the EGR tower gasket on the round center portion of the intake manifold.
3. Install the intake manifold gasket.
4. Slide the intake into the turbocharger outlet hose.
5. Install the intake manifold.
6. Install the EGR gasket and valve.

NOTICE: Refer to Fastener Notice in Service Precautions.

7. Install the intake manifold bolts.
^ Tighten the bolts to 23 Nm (17 ft. lbs.).





8. Install the clamp for the turbocharger connector hose.
^ Tighten the connector hose clamps to 6 Nm (50 inch lbs.).