
Remove the two-front M8 left cylinder head bolts-(1) and discard.Remove the left cylinder head bolts-(2) and discard.Remove the left cylinder head-(3).

Remove and discard the left cylinder head gasket-(1).
Intake Manifold Disassemble Intake and Forced Induction Intake Manifold
Valve Rocker Arm Removal - Right Side Valvetrain Valve Actuating Assembly Rocker ArmsSecurity
If equipped, OnStar provides these
services:
With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it.
With Remote Ignition Block,
if equipped, OnStar can block
the engine from being restarted.
Wi ...