Removal Procedure
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the ignition coils. Refer to IGNITION COILS in Engine Controls -4.8L, 5.3L, and 6.0L.
- Remove the spark plugs. Refer to SPARK PLUGS in Engine Controls - 4.8L, 5.3L, and 6.0L.
- Raise and suitably support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
- Remove the exhaust manifold pipe nuts.
- Lower the vehicle.
- Remove the exhaust manifold bolts, manifold, and gasket.
- Discard the gasket.
- Remove the heat shield bolts (1), and shield (2) from the exhaust manifold (1), if necessary.
- 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.