Century, Grand Prix, Impala, Intrigue, Lumina, Monte Carlo, Regal 2001-2005

Supercharger

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Removal & Installation



3.8L (VIN 1) Engine
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Remove or disconnect the following:

    Fuel injector sight shield
     
    Exhaust Gas Recirculation (EGR) valve heat shield
     
    Supercharger drive belt
     
    Right side spark plug wires from the ignition module
     
    Alternator brace
     
    Fuel injector electrical connectors
     
    Manifold Absolute Pressure (MAP) sensor bracket
     
    Fuel lines
     
    Fuel rail with the injectors
     
    Boost control solenoid
     
    Electrical and vacuum connections as necessary
     
    Throttle and cruise control cables with the bracket
     
    Throttle body air inlet duct
     
    Supercharger

    Click image to see an enlarged view

    Fig. Supercharger bolt locations-3.8L (VIN 1) engine

     

  6.  

To install:

  1. Install or connect the following:

    Supercharger with new a new gasket and O-rings and torque the bolts to 17 ft. lbs. (23 Nm)
     
    Throttle body air inlet duct
     
    Throttle and cruise control cables with the bracket and torque the bolts to 142 inch lbs. (16 Nm)
     
    Electrical and vacuum connectors
     
    Boost control solenoid and torque the nut to 72 inch lbs. (8 Nm)
     
    Fuel rail with fuel injectors and torque the hold-down bolts to 7 ft. lbs. (10 Nm) and the stud to 18 ft. lbs. (25 Nm)
     
    Fuel lines
     
    MAP sensor bracket
     
    Fuel injector electrical connectors
     
    Alternator brace and torque the bolt and nut to 37 ft. lbs. (50 Nm)
     
    Spark plug wires
     
    Supercharger drive belt
     
    EGR valve heat shield
     
    Fuel injector sight shield
     
    Negative battery cable
     

  2.  
  3. Start the engine and ensure proper operation.
  4.  

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Remove or disconnect the following:

    Fuel injector sight shield
     
    Exhaust Gas Recirculation (EGR) valve heat shield
     
    Supercharger drive belt
     
    Right side spark plug wires from the ignition module
     
    Alternator brace
     
    Fuel injector electrical connectors
     
    Manifold Absolute Pressure (MAP) sensor bracket
     
    Fuel lines
     
    Fuel rail with the injectors
     
    Boost control solenoid
     
    Electrical and vacuum connections as necessary
     
    Throttle and cruise control cables with the bracket
     
    Throttle body air inlet duct
     
    Supercharger

    Click image to see an enlarged view

    Fig. Supercharger bolt locations-3.8L (VIN 1) engine

     

  6.  

To install:

  1. Install or connect the following:

    Supercharger with new a new gasket and O-rings and torque the bolts to 17 ft. lbs. (23 Nm)
     
    Throttle body air inlet duct
     
    Throttle and cruise control cables with the bracket and torque the bolts to 142 inch lbs. (16 Nm)
     
    Electrical and vacuum connectors
     
    Boost control solenoid and torque the nut to 72 inch lbs. (8 Nm)
     
    Fuel rail with fuel injectors and torque the hold-down bolts to 7 ft. lbs. (10 Nm) and the stud to 18 ft. lbs. (25 Nm)
     
    Fuel lines
     
    MAP sensor bracket
     
    Fuel injector electrical connectors
     
    Alternator brace and torque the bolt and nut to 37 ft. lbs. (50 Nm)
     
    Spark plug wires
     
    Supercharger drive belt
     
    EGR valve heat shield
     
    Fuel injector sight shield
     
    Negative battery cable
     

  2.  
  3. Start the engine and ensure proper operation.
  4.  

3.8L (VIN 2) Engine
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Remove or disconnect the following:

    Fuel injector sight shield
     
    Exhaust Gas Recirculation (EGR) valve heat shield
     
    Supercharger drive belt
     
    Right side spark plug wires from the ignition module
     
    Alternator brace
     
    Fuel injector electrical connectors
     
    Manifold Absolute Pressure (MAP) sensor bracket
     
    Fuel lines
     
    Fuel rail with the injectors
     
    Boost control solenoid
     
    Electrical and vacuum connections as necessary
     
    Throttle and cruise control cables with the bracket
     
    Throttle body air inlet duct
     
    Supercharger

    Click image to see an enlarged view

    Fig. Supercharger bolt locations-3.8L (VIN 1) engine

     

  6.  

To install:

  1. Install or connect the following:

    Supercharger with new a new gasket and O-rings and torque the bolts to 17 ft. lbs. (23 Nm)
     
    Throttle body air inlet duct
     
    Throttle and cruise control cables with the bracket and torque the bolts to 142 inch lbs. (16 Nm)
     
    Electrical and vacuum connectors
     
    Boost control solenoid and torque the nut to 72 inch lbs. (8 Nm)
     
    Fuel rail with fuel injectors and torque the hold-down bolts to 7 ft. lbs. (10 Nm) and the stud to 18 ft. lbs. (25 Nm)
     
    Fuel lines
     
    MAP sensor bracket
     
    Fuel injector electrical connectors
     
    Alternator brace and torque the bolt and nut to 37 ft. lbs. (50 Nm)
     
    Spark plug wires
     
    Supercharger drive belt
     
    EGR valve heat shield
     
    Fuel injector sight shield
     
    Negative battery cable
     

  2.  
  3. Start the engine and ensure proper operation.
  4.  

 
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