Visual Inspection 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.

Inspect the cylinder head for the following conditions:

Damaged gasket surfaces
Damage to threaded bolt holes
Burnt or eroded areas in the combustion chamber
Cracks in the exhaust ports and combustion chambers
External cracks in the water chamber
Restrictions in the intake or exhaust passages
Restrictions in the cooling system passages