LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1219 (Engine Mechanical - 4.2L 6-Cylinder (Unit Repair)) >> Repair Instructions >> Exhaust Manifold Installation

Exhaust Manifold Installation

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the exhaust manifold gasket.
    2. Fig 1: Installing Exhaust Manifold Gasket
    G01706733Courtesy of GENERAL MOTORS CORP.
  2. Install the exhaust manifold.
  3. Add threadlock GM P/N United States 12345493, GM P/N Canada 10953488 to the exhaust manifold bolt threads.
  4. Install the exhaust manifold bolts.
    5. Fig 2: Installing Exhaust Manifold Bolts
    G01706734Courtesy of GENERAL MOTORS CORP.
  5. Tighten the exhaust manifold bolts.
    NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Tighten 

    1. 5.1. Tighten the exhaust manifold bolts a first pass in sequence to 25 N.m (18 lb ft).
    2. 5.2. Tighten the exhaust manifold bolts a second pass in sequence to 25 N.m (18 lb ft).
    3. 5.3. Tighten the exhaust manifold bolts a final pass in sequence to 25 N.m (18 lb ft).
    6. Fig 3: Tightening Exhaust Manifold Bolts In Sequence
    G01706735Courtesy of GENERAL MOTORS CORP.
  6. Install the exhaust manifold heat shield studs (if required).

    Tighten 

    Tighten the exhaust manifold heat shield studs to 10 N.m (89 lb in).

    7. Fig 4: Installing Exhaust Manifold Heat Shield Studs
    G01706736Courtesy of GENERAL MOTORS CORP.
  7. Install the exhaust manifold heat shield.
  8. Add anti-seize GM P/N United States 12371386, GM P/N Canada 993128 to the exhaust manifold heat shield nuts.
  9. Install the exhaust manifold heat shield nuts.

    Tighten 

    Tighten the exhaust manifold heat shield nuts to 10 N.m (89 lb in).

    10. Fig 5: Installing Exhaust Manifold Heat Shield Nuts
    G01706737Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals