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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 61 (Engine Exhaust) >> Repair Instructions >> Exhaust Seal Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Hummer H2. 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 .
  2. Remove the engine protection shield. Refer to Engine Protection Shield Replacement .
    3. Fig 1: View Of Transmission & HO2S Sensor Electrical Connector
    GM665040Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the CPA retainer.
  4. Disconnect the oxygen sensor electrical connector (1).
  5. Support the catalytic converter or exhaust manifold pipe with adjustable jackstands.
    6. Fig 2: Exhaust Manifold Pipe Nuts (Right)
    GM664826Courtesy of GENERAL MOTORS CORP.
  6. Remove the right exhaust manifold pipe nuts.
    7. Fig 3: Exhaust Manifold Pipe Nuts (Left)
    GM309165Courtesy of GENERAL MOTORS CORP.
  7. Remove the left exhaust manifold pipe nuts.
  8. Remove the exhaust hanger mounting bracket bolts.
  9. Lower the catalytic converter or exhaust manifold pipe using the adjustable jackstands.
  10. Remove the exhaust manifold pipe seal(s).
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