Special Tools

1. Open and remove the hood.



2. Disconnect the negative battery cable.



3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
4. Drain the engine cooling system.



5. Drain the intercooler cooling system at the left front of the vehicle.
6. Lower the vehicle.



7. Remove the engine sight shield.



8. Disconnect the mass airflow (MAF) sensor electrical connector located at the air inlet duct.



9. Disconnect the positive crankcase ventilation (PCV) fresh air tube from the air inlet duct.
10. Remove the air inlet duct.




Note: Do not remove throttle body.

11. Disconnect the throttle actuator electrical connectors from the throttle body.



12. Remove the supercharger and accessory drive belts.



13. Disconnect the intercooler cooling system hoses.

The two large coolant hoses at the front of the intercooler are retained by quick connects.

14. Disconnect the generator electrical connector and battery positive cable.
15. Remove the generator.
16. Remove the supercharger belt tensioner (1) and bolts.



17. Disconnect the purge solenoid electrical connector at the left front of the supercharger.
18. Remove the purge tube from the purge solenoid.




Note: Do not remove the solenoid.

19. Disconnect the electrical connector from the supercharger actuator solenoid at the left front of the supercharger.
20. Disconnect the active exhaust vacuum hose from the front of the supercharger assembly.

The small exhaust vacuum hose routes from the left side of the engine compartment to the front of the supercharger.

21. Disconnect the brake booster vacuum hose from the front of the supercharger assembly.

The large brake booster vacuum hose routes from the left side of the engine compartment to the front of the supercharger.




22. Disconnect the coolant temperature sensor electrical connector.
23. Remove the coolant temperature sensor from the cylinder head.
24. Disconnect the fuel injector and ignition coil harness connector.



25. Disconnect the air outlet pressure sensor harness connector from the sensor and separate the harness from the fuel rail bracket and reposition at the left side of the intercooler.

Do not remove the sensor from the intercooler.

26. Disconnect the barometric sensor electrical connector on the right side of the intercooler.

Do not remove the sensor from the intercooler.

27. Disconnect the inlet air temperature sensor electrical connector from the sensor on the right side of the intercooler.

Do not remove the sensor from the intercooler.

28. Disconnect the fuel injector and ignition coil harness connector.
29. Disconnect the engine wiring harness from the right side of the fuel rail bracket and reposition.



30. Disconnect and remove the PCV fresh air hose assembly from the right and left valve covers and dry sump oil tank.
31. Disconnect the ignition coil electrical connectors from the ignition coils.



32. Remove the rear hood seal from the cowl.
33. Raise the vehicle and remove the sway bar bushing-to-cradle brackets and bolts, left and right side.
34. Loosen the cradle bolts and lower the engine assembly and cradle assembly approximately 1 inch.
35. Lower the vehicle.



36. Remove the intercooler cover and bolts.
37. Place the supercharger rotor cover over the exposed areas of the rotors to avoid entry of dirt and debris.



38. Remove the PCV dirty air hose from the supercharger.
39. Bleed the fuel system pressure to 0 psi at the service test port.
40. Disconnect the fuel system to fuel feed-to-rail hose using the J 37088-A disconnect tool .



41. Remove the supercharger bolts.
42. Remove the supercharger assembly.




Note: 

•	Do not allow dirt or debris to enter the passages of the supercharger. Cover the intake ports as required.

•	With the manifold positioned upside down on a bench, the lower assembly may be positioned onto the intercooler cover dowel pins. Use care not to reposition or bend the dowel pins.

43. Drill out the gasket rivets (1) using a drill bit with an outside diameter no larger than 3.2 mm (0.125 in). Remove the gasket (2).



44. Install the NEW gaskets (1).
45. Install NEW gasket rivets (2).

Note: 

•	The supercharger, throttle body, fuel injection rail and fuel injectors may be removed as an assembly. If not servicing the individual components, remove the supercharger as an assembly.

•	Cover the inlet area of the supercharger to prevent dirt or debris contamination onto the rotors.




1. Cover the inlet area of the supercharger (1) to prevent dirt or debris contamination onto the rotors.



2. Install the EN 48898 fixture to the supercharger.
3. Tighten the EN 48898 fixture bolts and nuts until snug.
4. Using the lifting device, install the supercharger onto the engine. Align the dowel pin at the right front of the supercharger to the cylinder head.



5. Apply a 5 mm (0.2 in) band of threadlocker GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the threads of the bolts.
6. Install the supercharger bolts (1).



7. Tighten the bolts.
8. Tighten the bolts a first pass in sequence to 5 N·m (44 lb ft).
9. Tighten the bolts a final pass in sequence to 10 N·m(89 lb ft).




Note: The fuel rail with injectors must be installed prior to intercooler/cover installation.

10. Install the fuel rail with injectors as required. Refer to Fuel Rail and Injectors Installation.
11. Install the supercharger cover seal (3).
12. Install the supercharger cover bolts (1) and the supercharger cover (2).



13. Tighten the bolts.
14. Tighten the bolts a first pass in sequence to 5 N·m(44 lb ft).
15. Tighten the bolts a final pass in sequence to 10 N·m(89 lb ft).