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Home >> Cadillac >> 2009 >> STS V >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 4.4L - Introduction >> Repair Instructions >> Supercharger Inlet Duct Assembly Replacement >> Removal Procedure

Removal Procedure

    NOTE: 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. Fig 1: Identifying Air Cleaner Outlet Duct
    GM1614080Courtesy of GENERAL MOTORS CORP.
  2. Remove the engine sight shield. Refer to Intake Manifold Sight Shield Replacement .
  3. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
    4. Fig 2: Identifying PCV Hose Fitting
    GM1613993Courtesy of GENERAL MOTORS CORP.
    NOTE: 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 Positive Crankcase Ventilation Hose/Pipe/Tube Replacement .
    5. Fig 3: Identifying Supercharger Inlet Duct Seals And Clamps
    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. 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. Fig 4: Identifying Air Inlet Housing Front Panel
    GM1644927Courtesy of GENERAL MOTORS CORP.
  8. Remove the hood assembly. Refer to Hood Replacement .
  9. Remove the windshield wiper arm assemblies. Refer to Windshield Wiper Arm Replacement .
  10. Remove the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement .
  11. Remove the windshield wiper transmission. Refer to Windshield Wiper Transmission Replacement .
  12. Remove the front air inlet housing panel (1). Refer to Air Inlet Housing Front Panel Replacement .
    13. Fig 5: Identifying Brake Booster Hose & EVAP Lines
    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: View of 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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