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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1783 (Engine Exhaust System) >> Repair Instructions >> Exhaust Manifold Replacement - Left (6.6L Engine) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and suitably support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
  2. Remove the exhaust pipe heat shield bolts.
  3. Reposition the heat shield to the side in order to access the exhaust pipe to exhaust manifold bolts.
    Fig 1: Removing Exhaust Pipe Heat Shield Bolts - Left (6.6L)
    G02133455Courtesy of GENERAL MOTORS CORP.
  4. Remove the exhaust pipe to exhaust manifold bolts (2).
  5. Lower the vehicle in order to work through the front wheelhouse opening.
  6. Remove the wheel house panel. Refer to WHEELHOUSE PANEL REPLACEMENT in Body Front End.
  7. Remove the front tire and wheel. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION in Tires and Wheels.
  8. Remove the charged air cooler outlet duct.
    Fig 2: Removing Exhaust Pipe To Exhaust Manifold Bolts - Left (6.6L)
    G02133456Courtesy of GENERAL MOTORS CORP.
  9. Remove the exhaust manifold heat shield bolts.
  10. Remove the exhaust manifold heat shield.
    Fig 3: Removing Exhaust Manifold Heat Shield & Bolts - Left (6.6L)
    G02133457Courtesy of GENERAL MOTORS CORP.
  11. Remove the exhaust manifold bolts/nuts.
  12. Remove the exhaust manifold.
    1. 12.1. Remove the manifold from the rear stud.
    2. 12.2. Remove the manifold from the front stud.
    3. 12.3. Slide the manifold out the bottom, past the oil filter.
  13. Remove and discard the exhaust manifold gasket.
  14. Clean and inspect the exhaust manifold. Refer to EXHAUST MANIFOLD CLEANING AND INSPECTION .
    Fig 4: Removing Exhaust Manifold, Gasket, Bolts & Nuts - Left (6.6L)
    G02133458Courtesy of GENERAL MOTORS CORP.