Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Raise the vehicle enough in order to work through the wheelhouse opening. Refer to Lifting and Jacking the Vehicle in General Information.
Remove the wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Front End.
Remove the exhaust manifold heat shield bolts.

Fig 1: Exhaust Manifold Heat Shield (6.6L (LLY) Engine)
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Remove the exhaust manifold heat shield.

Fig 2: Exhaust Pipe To The Exhaust Manifold Bolts (6.6L (LLY) Engine)

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Remove the right exhaust pipe to the exhaust manifold bolts (3, 4, and 5).

Fig 3: Exhaust Manifold Bolt And Nut Loosening Sequence (6.6L (LLY) Engine)

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Remove the exhaust manifold bolts and nuts in the proper sequence.

Fig 4: View Of Exhaust Manifold (6.6L (LLY) Engine)

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Remove the exhaust manifold.
Remove the bolt for the oil level indicator tube bracket in order to remove the exhaust manifold gasket.
Remove and discard the exhaust manifold gasket.
Clean and inspect the exhaust manifold. Refer to Exhaust Manifold Cleaning and Inspection in Engine Mechanical - 6.6L (LLY).