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Home >> Cadillac >> 2006 >> STS Base, 3.6 7, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 4.4L (1 Of 5)) >> On-Vehicle Repair Instructions (Part 1) >> Supercharger Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the hood. Refer to Hood Replacement .
  2. Remove the cross vehicle brace. Refer to Cross Vehicle Brace Replacement (DX) .
  3. Remove the engine sight shield. Refer to Intake Manifold Sight Shield Replacement .
  4. Remove the wiper arm assemblies. Refer to Windshield Wiper Arm Replacement .
  5. Remove the air inlet grille. Refer to Air Inlet Grille Panel Replacement .
  6. Remove the wiper motor module. Refer to Windshield Wiper System Module Replacement .
  7. Remove the air inlet housing front panel. Refer to Air Inlet Housing Front Panel Replacement .
  8. Remove the front and rear supercharger inlet duct assemblies. Refer to Supercharger Inlet Duct Assembly Replacement .
  9. Drain the charge air cooling system. Refer to Charge Air Cooling System Draining and Filling (Static Fill) or Charge Air Cooling System Draining and Filling (Vac N Fill) .
    10. IMPORTANT: Do not allow coolant to contact the supercharger drive belt.
    Place a shop rag under the front portion of the supercharger to catch any remaining coolant.
    Fig 1: Charge Air Cooler Front Manifold Assembly
    GM1614613Courtesy of GENERAL MOTORS CORP.
  10. Remove the front portion of the supercharger front manifold (2). It is not necessary to remove the hoses from the manifold. Discard the manifold O-ring seals. Position the hoses with manifold aside. Refer to Charge Air Cooler Front Manifold Replacement .
    11. Fig 2: Fuel Rail
    GM1614611Courtesy of GENERAL MOTORS CORP.
  11. Remove the fuel injector rail assembly (1). Refer to Fuel Injector and Fuel Rail Replacement .
    12. Fig 3: Brake Booster Hose & EVAP Lines
    GM1644600Courtesy of GENERAL MOTORS CORP.
  12. Disconnect the throttle body electrical connector (3).
  13. Disconnect the evaporative emission (EVAP) canister purge solenoid valve electrical connector (7).
    14. Fig 4: Supercharger Bypass Regulator Solenoid Valve
    GM1614014Courtesy of GENERAL MOTORS CORP.
  14. Disconnect the supercharger bypass regulator solenoid valve electrical connector (3).
    15. Fig 5: Vacuum Line Fitting
    GM1614002Courtesy of GENERAL MOTORS CORP.
  15. Disconnect the manifold absolute pressure (MAP) sensor vacuum line (2) from the supercharger.
  16. Disconnect the supercharger intake air temperature (IAT) sensor electrical connector.
    17. Fig 6: Vacuum Line Fitting
    GM1614007Courtesy of GENERAL MOTORS CORP.
  17. Disconnect the supercharger inlet absolute pressure (SIAP) sensor vacuum line fitting (1) from the rear of the supercharger. Position the sensors, vacuum lines, and wire harness aside.
    18. Fig 7: PCV Tube Fitting
    GM1614012Courtesy of GENERAL MOTORS CORP.
  18. Disconnect the positive crankcase ventilation (PCV) tube fitting (1) from the right camshaft cover.
  19. Remove the supercharger drive belt. Refer to Supercharger Belt Replacement .
    20. CAUTION: The supercharger must be lifted with the EN 47748. The weight of the supercharger assembly is approximately 34 kg (75 lb) and could cause injury if lifted by hand.
    NOTE: The supercharger must be lifted with the EN 47748. Damage could occur to the finish and/or components of the supercharger and surrounding engine or vehicle components.
    Fig 8: EN-47748
    GM1614620Courtesy of GENERAL MOTORS CORP.
  20. Install the EN-47748  (1-5) to the supercharger. See Special Tools .
    21. Fig 9: Removal Of Supercharger Assembly
    GM1614621Courtesy of GENERAL MOTORS CORP.
  21. Install an engine hoist to the EN-47748  . See Special Tools .
  22. Remove and discard the supercharger bolts.
  23. Remove the supercharger.
    24. NOTE: The EN 47833 must be installed to the supercharger in order to prevent damage to the supercharger bypass actuator cable and the finish of the supercharger. Failure to use the EN 47833 can lead to bending the brackets of the supercharger bypass actuator cable. Bent supercharger bypass actuator cable brackets will cause the supercharger bypass valve to function improperly.
    Fig 10: Supercharger On Engine Hoist
    GM1614697Courtesy of GENERAL MOTORS CORP.
  24. Install the EN-47833  to the supercharger while the supercharger is suspended by the engine hoist. See Special Tools .
  25. Place the supercharger on a workbench and remove the engine hoist.
  26. If replacing the supercharger, transfer the necessary parts.
  27. Remove the supercharger gaskets from the engine.
  28. Clean and inspect the supercharger. Refer to Supercharger Cleaning and Inspection .
  29. Clean and inspect the supercharger mating surface on the engine.
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