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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1676 (Engine Mechanical - 3.8L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Supercharger Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 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: Installing Supercharger O-Ring Seals
    G01968408Courtesy 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: Installing Supercharger Gasket
    G01968409Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  5. Install the right side supercharger bolts.
    Fig 3: Installing Right Side Supercharger Bolts
    G01968410Courtesy 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: Installing Left Side Supercharger Bolts
    G01968411Courtesy of GENERAL MOTORS CORP.
  7. Install the air cleaner intake duct. Refer to AIR CLEANER INTAKE DUCT in Removal & Installation - A/T.
  8. Install the accelerator and the cruise control cables with the bracket to the throttle body. Refer to AIR CLEANER INTAKE DUCT in Removal & Installation - A/T.
  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 (MAF) 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 in Removal & Installation.
  12. Install the fuel rail assembly. Refer to FUEL RAIL & INJECTORS in Removal & Installation.
  13. Install the MAP sensor bracket. Refer to MANIFOLD ABSOLUTE PRESSURE SENSOR in Removal & Installation.
  14. Install the generator brace.
  15. Install the right spark plug wires to the ignition control module.
  16. Install the supercharger drive belt. Refer to DRIVE BELT REPLACEMENT (L36)  or DRIVE BELT REPLACEMENT (L67)  .
    Fig 5: Installing Fuel Rail Assembly
    G01968412Courtesy of GENERAL MOTORS CORP.
  17. Install the EGR valve heat shield, nut and the bolt.

    Tighten 

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

    Fig 6: Installing EGR Valve Heat Shield & Nut
    G01968413Courtesy 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. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE in Battery.
  20. Inspect for fluid or vacuum leaks.
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