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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust >> Repair Instructions >> Exhaust Manifold Replacement - Left >> Removal Procedure

Removal Procedure

    Fig 1: Exhaust Manifold Pipe Nuts (Left)
    GM664832Courtesy 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 spark plug wires.
    5. Fig 2: Exhaust Manifold Bolts, Manifold & Gasket
    GM260074Courtesy of GENERAL MOTORS CORP.
  5. Remove the exhaust manifold bolts, manifold, and gasket.
  6. Discard the gasket.
    7. Fig 3: View Of Left Exhaust Manifold Heat Shield & Bolts
    GM492766Courtesy of GENERAL MOTORS CORP.
  7. Remove the heat shield bolts (3), and shield (2) from the exhaust manifold (1), if necessary.
  8. Clean and inspect the exhaust manifold, if the manifold is not being replaced. Refer to EXHAUST MANIFOLD CLEANING AND INSPECTION .
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