57. Intake Manifold Assemble

NOTICE: Refer to Fastener Notice in Service Precautions.





1. If reusing the fastener, apply threadlock GM P/N 12345382 or equivalent to the threads of the fuel meter body bracket bolt.
2. Install the fuel meter body bracket and bolt.
^ Tighten the fuel meter bracket bolt to 10 Nm (88 inch lbs).
3. Install the fuel meter body into the fuel meter body bracket.
4. Install the 6 poppet nozzles into the proper lower intake manifold bores.
5. Inspect the poppet nozzles in order to ensure that the poppet nozzles are firmly seated and locked in the lower intake manifold bores.
6. Install a NEW fuel meter body seal into the groove of the fuel meter body.





7. Install a NEW upper intake manifold to lower intake manifold gasket into the groove of the upper intake manifold.
8. Install the upper intake manifold onto the lower intake manifold.
9. If reusing the fasteners, apply threadlock GM P/N 12345382 or equivalent to the threads of the upper intake manifold attaching studs.
10. Install the upper intake manifold attaching studs.
10.1. Tighten the upper intake manifold attaching studs on the first pass to 5 Nm (44 lb in).
10.2. Tighten the upper intake manifold attaching studs on the final pass to 9 Nm (80 lb in).





11. If reusing the fasteners, apply threadlock GM P/N 12345382 or equivalent to the threads of the Evaporative Emission (EVAP) canister purge solenoid valve studs.





12. Install the EVAP canister purge solenoid valve and studs.
^ Tighten the EVAP canister purge solenoid valve studs to 10 Nm (88 inch lbs).
13. Install the engine wiring harness bracket and nut.
^ Tighten the engine wiring harness bracket nut to 12 Nm (106 inch lbs).
14. Install the NEW fuel seals (8) (black O-rings) into the fuel meter body.
15. Install the NEW spacer rings (7) (flat washers) into the fuel meter body.
16. Install the NEW fuel seals (6) (yellow O-rings) into the fuel meter body.
17. Install the NEW fuel seal retainers (5) into the fuel meter body.
18. Install the fuel pipe (3) into the fuel meter body.
19. Install the fuel pipe retainer bracket (2) onto the fuel pipe.
20. Install the fuel pipe retainer bracket nuts (1).
21. If reusing the fastener, apply threadlock GM P/N 12345382 or equivalent to the threads of the fuel pipe bolt.
22. Install the fuel pipe bolt (4).
22.1. Tighten the fuel pipe bracket nuts to 3 Nm (27 lb in).
22.2. Tighten the fuel pipe bolt to 6 Nm (53 lb in).





23. Install a NEW Manifold Absolute Pressure (MAP) sensor seal onto the MAP sensor.
24. Apply a small amount (1 drop) of clean engine oil to the MAP sensor seal.





25. Install the MAP sensor into the upper intake manifold.
26. Install the ignition coil and studs.
^ Tighten the ignition coil studs to 12 Nm (106 inch lbs).





27. If reusing the Engine Coolant Temperature (ECT) sensor (if equipped), apply sealant GM P/N 12346004 or equivalent to the threads of the ECT sensor.
28. Install the ECT sensor (if equipped) into the front of the lower intake manifold.
^ Tighten the ECT sensor to 20 Nm (15 ft. lbs).





IMPORTANT: The exhaust gas recirculation (EGR) valve must be installed in the original orientation.

29. Install a NEW EGR valve gasket and the EGR valve.





30. Install the EGR valve bolts.
30.1. Tighten the EGR valve bolts on the first pass to 7 Nm (62 lb in).
30.2. Tighten the EGR valve bolts on the final pass to 30 Nm (22 lb ft).





31. Install the engine coolant thermostat.
32. Install the water outlet.
33. Install the water outlet studs.
^ Tighten the water outlet studs to 25 Nm (18 ft. lbs).





34. Install a NEW throttle body gasket into the groove in the upper intake manifold.
35. Install the throttle body onto the upper intake manifold.





36. If reusing the fasteners, apply threadlock GM P/N 12345382 or equivalent to the threads of the throttle body attaching studs.
37. Install the throttle body attaching studs.
^ Tighten the throttle body attaching studs to 9 Nm (80 lb in).





38. Install the accelerator control cable bracket, the studs, and the nuts.
38.1. Tighten the accelerator control cable bracket stud to the intake manifold to 6 Nm (53 lb in).
38.2. Tighten the accelerator control cable bracket nuts to 12 Nm (106 inch lbs).
38.3. Tighten the accelerator control cable bracket stud to the throttle body to 12 Nm (106 inch lbs).