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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 788 (Engine Exhaust System) >> Repair Instructions >> Exhaust Manifold Replacement - Left (4.8L, 5.3L, and 6.0L Engines) >> Removal Procedure

Removal Procedure

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  1. Remove the ignition coils. Refer to IGNITION COILS in Engine Controls -4.8L, 5.3L, and 6.0L.
  2. Remove the spark plugs. Refer to SPARK PLUGS in Engine Controls - 4.8L, 5.3L, and 6.0L.
  3. Raise and suitably support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
  4. Remove the exhaust manifold pipe nuts.
    5. Fig 1: Removing Exhaust Manifold Pipe Nuts
    G02119386Courtesy of GENERAL MOTORS CORP.
  5. Lower the vehicle.
  6. Remove the exhaust manifold bolts, manifold, and gasket.
    7. Fig 2: Removing Exhaust Manifold Bolts, Manifold, And Gasket
    G02119387Courtesy of GENERAL MOTORS CORP.
  7. Discard the gasket.
  8. Remove the heat shield bolts (3), and shield (2) from the exhaust manifold (1), if necessary.
    9. Fig 3: Removing Heat Shield Bolts And Shield From Exhaust Manifold
    G02119388Courtesy of GENERAL MOTORS CORP.
  9. Clean and inspect the exhaust manifold, if the manifold is not being replaced. Refer to EXHAUST MANIFOLD CLEANING AND INSPECTION in Engine Mechanical - 4.8L, 5.3L, and 6.0L.
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