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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 4.3L (Unit Repair) >> Repair Instructions >> Exhaust Manifold Installation - Left

Exhaust Manifold Installation - Left

  1. Install the NEW exhaust manifold gaskets.
    Fig 1: Left Exhaust Manifold Gaskets
    G01660660Courtesy of GENERAL MOTORS CORP.
  2. Install the exhaust manifold.
  3. Install the spark plug wire shields.
  4. If reusing the fasteners, apply threadlock GM P/N United States 12345493, GM P/N Canada 10953488, or equivalent, to the threads of the exhaust manifold bolts and stud.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  5. Install the exhaust manifold bolts and stud.

    Tighten 

    1. 5.1. Tighten the exhaust manifold bolts and stud on the first pass to 15 N.m (11 lb ft).
    2. 5.2. Tighten the exhaust manifold bolts and stud on the final pass to 30 N.m (22 lb ft).
  6. Install the spark plug wires to the spark plug wire retainers.
  7. Install the spark plug wires onto the spark plugs.
    Fig 2: Left Exhaust Manifold & Bolts
    G01660661Courtesy of GENERAL MOTORS CORP.