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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust >> Repair Instructions >> Exhaust Manifold Replacement - Right Side >> Removal Procedure

Removal Procedure

    Fig 1: Exhaust Manifold Pipe Nuts (Right)
    GM664837Courtesy of GENERAL MOTORS CORP.
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the exhaust manifold pipe nuts.
  3. Lower the vehicle.
  4. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  5. Drain the coolant. Refer to Cooling System Draining and Filling (Static Fill) or Cooling System Draining and Filling (Vac-N-Fill) .
  6. Using the J 43181  , remove the heater core hoses from the heater core. Position aside.
  7. Remove the spark plug wires. Refer to Spark Plug Wire Replacement .
  8. Remove the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement .
    9. Fig 2: Exhaust Manifold Bolts, Manifold & Manifold Gasket (Right)
    GM260093Courtesy of GENERAL MOTORS CORP.
  9. Remove the exhaust manifold bolts, manifold, and manifold gasket.
  10. Discard the gasket.
    11. Fig 3: View Of Heat Shield Bolts, And Shield From The Exhaust Manifold
    GM492768Courtesy of GENERAL MOTORS CORP.
  11. Remove the heat shield bolts (3), and shield (2) from the exhaust manifold (1).
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