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Home >> Cadillac >> 2006 >> STS Base, 3.6 7, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Control System - 4.4L - Introduction (2 Of 2)) >> Repair Instructions >> Supercharger Inlet Duct Assembly Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
    IMPORTANT: The following procedure is for removal and installation of both the front and rear section of the supercharger inlet duct assembly.
  1. The front section of the supercharger inlet duct assembly can be serviced independently of the rear section.
  2. Remove the engine sight shield. Refer to Intake Manifold Sight Shield Replacement .
    3. Fig 1: Air Cleaner Outlet Duct
    GM1614080Courtesy of GENERAL MOTORS CORP.
  3. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
    4. Fig 2: PCV Hose Fitting
    GM1613993Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: There is a positive crankcase ventilation (PCV) hose fitting on the underside of the supercharger inlet duct.
  4. Disconnect the PCV hose fitting (1) from the underside of the inlet duct assembly. Refer to Crankcase Ventilation Hoses/Pipes Replacement .
    5. Fig 3: Inlet Duct Assembly
    GM1640656Courtesy of GENERAL MOTORS CORP.
  5. Loosen the rear screw clamps (2) located between the front and rear section of the inlet duct assembly.
    6. Fig 4: Air Inlet Housing Front Panel
    GM1644927Courtesy of GENERAL MOTORS CORP.
  6. Remove the ball studs (1) that retain the inlet duct to the supercharger. There are a total of 6 ball studs.
  7. Remove the front section of the supercharger inlet duct.
  8. Remove the hood assembly. Refer to Hood Replacement .
  9. Remove the windshield wiper arm assemblies. Refer to Windshield Wiper Blade Replacement .
  10. Remove the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement .
  11. Remove the windshield wiper motor module assembly. Refer to Windshield Wiper System Module Replacement .
  12. Remove the front air inlet housing panel (1). Refer to Air Inlet Housing Front Panel Replacement .
    13. Fig 5: EVAP Line
    GM1644600Courtesy of GENERAL MOTORS CORP.
  13. Disconnect the evaporative emission (EVAP) line fitting (2) from the EVAP valve.
  14. Disconnect the EVAP line fitting (5) from the chassis bundle. Remove the EVAP line (6) from the vehicle.
  15. Remove the brake booster hose (1) from the port on the rear of the supercharger.
  16. Loosen the rear screw clamp (4) on the inlet duct seal.
    17. Fig 6: Rear Section Of Supercharger Inlet Duct
    GM1652890Courtesy of GENERAL MOTORS CORP.
  17. Remove the rear section of the supercharger inlet duct from the vehicle.
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