CTS V6-3.2L VIN N (2003)
16. Position the crankcase vent adapter to the intake plenum.
17. Install the 3 bolts securing the crankcase vent adapter to the intake plenum. Tighten the crankcase vent tube adapter bolts to 8 Nm (71 lb in).
18. Inspect the following O-ring seals and replace if necessary:
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The throttle body.
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The crankcase vent tubes.
19. Lightly lubricate the O-ring seals with clean engine oil.
20. Position the throttle body to the intake plenum and crankcase vent adapter.
21. Install the bolts securing the throttle body to the intake plenum. Tighten the throttle body bolts to 8 Nm (71 lb in).
22. Connect the fuel pressure regulator atmospheric vent tube to the bottom of the throttle body.
23. Install the intake plenum air inlet hose clamps and hoses to the throttle body.
