Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000mi.Have underbody flushing service performed. See "Underbody Maintenance" inExterior Care.
Power Mode Description and Operation
GMLAN and Media Oriented Systems Transport (MOST) Wiring RepairsCamshaft Cover Replacement - Left Side Valvetrain Camshaft
Special ToolsEN-46101Spark Plug Tube Seal GuideFor equivalent regional tools, refer toSpecial Tools.Removal ProcedureRemove the ignition coils. Refer toIgnition Coil Replacement - Bank 2.Disconnect and remove the engine harness from the camshaftcover.Remove the intake manifold. Refer toIntake Manifo ...