Removal Procedure
WARNING: This page is about a different variant/trim than selected.
- Drain the coolant. Refer to Cooling System Draining and Filling (LS3, L99 Static Fill) or Cooling System Draining and Filling (GE 47716) .
- Remove the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
- Remove the engine coolant air bleed hose.
- Remove the exhaust manifold. Refer to Exhaust Manifold Replacement - Right Side (L99/LS3) .
- Remove the oil level indicator tube bolt.
- Reposition the oil level indicator tube, if necessary.
- Remove the Engine Coolant Air Bleed Pipe and Hole Cover. Refer to Engine Coolant Air Bleed Pipe and Hole Cover Removal
- Remove the intake manifold. Refer to Intake Manifold Replacement .
- Remove the wiring harness from the clip at the rear of the cylinder head.
- Remove the ground wire bolts/studs from the rear, center, and front of the cylinder head.
- Remove the canister purge solenoid. Refer to Evaporative Emission Canister Purge Solenoid Valve Replacement .
- Reposition the harnesses as necessary.
- Remove the cylinder head bolts.
- Remove the cylinder head.
- Remove the cylinder head gasket (217).
- Discard the gasket.
- Discard the cylinder head bolts.
- Clean and inspect the cylinder head. Refer to Cylinder Head Cleaning and Inspection .
NOTE:
The cylinder head bolts are NOT reusable.
CAUTION:
After removal, place the cylinder head on 2 wood blocks in order to prevent damage to the sealing surfaces.