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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 598 (Engine Mechanical - 3.8L (On-Vehicle)) >> Repair Instructions >> Supercharger Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. If replacing the supercharger install the following:
    • Manifold vacuum source
    • Supercharger bypass valve
    • PCV valve
    • Throttle body
  2. Install the new supercharger O-ring seals.
    Fig 1: Supercharger O-Ring Seals
    G01764123Courtesy of GENERAL MOTORS CORP.

    Important:  Do not use any sealer on the gasket.

  3. Install the new supercharger gasket.
  4. Install the supercharger.
    Fig 2: Supercharger Gasket
    G01764124Courtesy of GENERAL MOTORS CORP.
  5. Install the right side supercharger bolts.
    Fig 3: Right Side Supercharger Bolts
    G01764125Courtesy of GENERAL MOTORS CORP.
  6. Install the left side supercharger bolts.

    Tighten: 

    Tighten the supercharger bolts starting from the center and working to the outside of the supercharger to 23 N.m (17 lb ft). 

    Fig 4: Left Side Supercharger Bolts
    G01764126Courtesy of GENERAL MOTORS CORP.
  7. Install the air cleaner intake.
  8. Install the accelerator and the cruise control cables with the bracket to the throttle body.
  9. Connect the electrical connectors to following:
    • Intake air temperature (IAT) sensor
    • Idle air control (IAC) valve
    • Throttle position (T/P) sensor
    • Mass air flow (MAP) sensor
    • EVAP purge valve
    • Exhaust gas recirculation (EGR) valve
    • Supercharger bypass valve
  10. Connect the vacuum lines to the following:
    • Manifold vacuum source
    • Supercharger bypass valve
    • Supercharger
    • Fuel pressure regulator valve
  11. Install the boost control solenoid. Refer to BOOST CONTROL SOLENOID
  12. Install the fuel rail assembly. Refer to FUEL RAIL & INJECTORS
    13. Fig 5: Supercharger Fuel Rail Assembly
    G01764127Courtesy of GENERAL MOTORS CORP.
  13. Install the MAP sensor bracket. Refer to MANIFOLD ABSOLUTE PRESSURE SENSOR
  14. Install the generator brace. Refer to GENERATOR
  15. Install the right spark plug wires to the ignition module. Refer to SPARK PLUGS
  16. Install the supercharger drive belt. Refer to Drive Belt Replacement (L36)  or Drive Belt Replacement (L67) 
  17. Install the exhaust gas recirculation (EGR) valve heat shield, nut and bolt.

    Tighten: 

    Tighten the EGR heat shield nut and bolt to 10 N.m and (89 lb in) 

    Fig 6: EGR Valve Heat Shield, Nut And Bolt
    G01764128Courtesy of GENERAL MOTORS CORP.
  18. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (L36)  or Fuel Injector Sight Shield Replacement (L67) 
  19. Connect the negative battery cable.
  20. Inspect for fluid or vacuum leaks.
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