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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1318 (Engine Exhaust System) >> Repair Instructions >> Exhaust Manifold Replacement - Right (3.8L) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the exhaust manifold stud(s) if removed.
  2. If replacing the right exhaust manifold Install the heated oxygen (HO2S) sensor to the right exhaust manifold. Refer to HEATED OXYGEN SENSOR .
    Fig 1: Exhaust Manifold Studs
    G01704068Courtesy of GENERAL MOTORS CORP.
  3. Install the lower right exhaust manifold heat shield.
    Fig 2: Lower Right Exhaust Manifold Heat Shield
    G01704069Courtesy of GENERAL MOTORS CORP.
  4. Install the upper right exhaust manifold heat shield.
    Fig 3: Upper Right Exhaust Manifold Heat Shield
    G01704070Courtesy of GENERAL MOTORS CORP.
  5. Install the new right exhaust manifold gasket.
  6. Install the right exhaust manifold.
    NOTE: Refer to FASTENER NOTICE .
  7. Install the right exhaust manifold bolts and nuts.

    Tighten 

    Tighten the right exhaust manifold bolts and nuts to 30 N.m (22 lb ft).

    Fig 4: Right Exhaust Manifold, Gasket, Bolts & Nuts
    G01704071Courtesy of GENERAL MOTORS CORP.
  8. Install the fuel injector sight shield bracket.
  9. Install the fuel injector sight shield bracket nuts.

    Tighten 

    Tighten the fuel injector sight shield bracket nuts to 30 N.m (22 lb ft).

    Fig 5: Fuel Injector Sight Shield Bracket & Nuts
    G01704072Courtesy of GENERAL MOTORS CORP.
  10. Install the right engine lift bracket.
  11. Install the right engine lift bracket bolt and nut.

    Tighten 

    Tighten the right engine lift bracket bolt and nut to 30 N.m (22 lb ft).

  12. Install the right spark plug wires. Refer to
    Fig 6: Right Engine Lift Bracket, Bolt & Nut
    G01704073Courtesy of GENERAL MOTORS CORP.
  13. Install the heated oxygen (HO2S) sensor electrical connector (4) to the engine sight shield bracket (1).
  14. Connect the heated oxygen (HO2S) sensor electrical connector (4).
  15. Rotate the engine to the original position.
  16. Raise the vehicle.
    Fig 7: HO2S Sensor Electrical Connector & Engine Sight Shield Bracket
    G01704074Courtesy of GENERAL MOTORS CORP.
  17. Install the EGR adapter pipe to the right exhaust manifold.
  18. Install the EGR adapter pipe bolt to the right exhaust manifold.

    Tighten 

    Tighten the EGR adapter pipe bolt to 29 N.m (21 lb ft).

    Fig 8: EGR Adapter Pipe & Bolt
    G01704075Courtesy of GENERAL MOTORS CORP.
  19. Install the catalytic converter pipe to the right exhaust manifold.
  20. Install the catalytic converter pipe stud nuts to the right exhaust manifold.

    Tighten 

    Tighten the catalytic converter pipe stud nuts to 32 N.m (24 lb ft).

    Fig 9: Catalytic Converter Pipe, Studs
    G01704076Courtesy of GENERAL MOTORS CORP.
  21. Lower the vehicle.
  22. Install the exhaust crossover pipe to the right exhaust manifold. Refer to Exhaust Crossover Pipe Replacement (3.1L)  or Exhaust Crossover Pipe Replacement (3.8L) .
  23. Install the fuel injector sight shield. Refer to FUEL INJECTOR SIGHT SHIELD REPLACEMENT (L36) or FUEL INJECTOR SIGHT SHIELD REPLACEMENT (L67) .
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