Removal Procedure
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the generator bracket. Refer to Generator Replacement .
- Remove the intake manifold. Refer to Intake Manifold Replacement (RPOs LC9, LMG, LY5, L76) , Intake Manifold Replacement (RPOs LY2, LY6) , Intake Manifold Replacement (Except RPOs LY2, LY6, LC9, LMG, LY5) .
- Remove the coolant air bleed pipe. Refer to Engine Coolant Air Bleed Pipe Replacement (with AFM) , Engine Coolant Air Bleed Pipe Replacement (without AFM) .
- Remove the left exhaust manifold. Refer to Exhaust Manifold Replacement - Left Side .
- Remove the pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
- Remove the engine ground strap bolt from the rear of the cylinder head.
- Remove the ground strap from the cylinder head.
- Remove and discard the cylinder head bolts (220, 221).
- Remove the cylinder head (218).
- Remove and discard the cylinder head gasket (217).
- If required, clean and inspect the cylinder head. Refer to Cylinder Head Cleaning and Inspection .
NOTE:
The cylinder head bolts are of a torque-to-yield design and are NOT to be reused.
CAUTION:
After removal, place the cylinder head on 2 wood blocks in order to prevent damage to the sealing surfaces.