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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 151 (Engine Exhaust System) >> Repair Instructions >> Exhaust Manifold Replacement - Left Side >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Exhaust Manifold, Gasket & Catalytic Converter
    GM1708614Courtesy of GENERAL MOTORS CORP.
  1. Remove the ignition coils. Refer to Ignition Coil Replacement .
  2. Remove the spark plugs. Refer to Spark Plug Replacement .
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  4. Remove the catalytic converter to exhaust manifold nuts. (1500 series shown, 2500 series similar).
  5. Lower the vehicle.
    6. Fig 2: View Of Exhaust Manifold, Manifold Bolts & Gasket
    GM1708615Courtesy of GENERAL MOTORS CORP.
  6. Remove the exhaust manifold bolts, and exhaust manifold.
  7. Remove and discard the exhaust manifold gasket.
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