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 RepairsCylinder Head Disassemble (LAF, LEA, or LUK) Engine Block Cylinder Head
Special ToolsEN-8062Valve Spring CompressorEN-36017Valve Seal RemoverEN-43963Valve Spring Compressor (off car)For equivalent regional tools, refer toSpecial Tools.Remove the coolant air bleed hosefitting-(1).Remove the intake camshaft position sensor-(1) andbolt.Warning:Compressed valve springs have ...