A Component Comparison from the Previous Year

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

A rivet-type plug replaces the coolant air bleed covers located at the top rear of each cylinder head. To properly repair a leaking plug, remove cylinder head from the engine, remove the plug from the cylinder head and install first design coolant air bleed cover and bolt.
A new design crankshaft balancer bolt is used with a four pass tightening process.
The oil pan assembly now includes the AFM oil pressure relief valve.