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 RepairsOil Level Indicator Tube Replacement Engine Lubrication Oil Level Indicator Tube
Removal ProcedureRemove the intake manifold cover. Refer toIntake Manifold Cover ReplacementRemove the oil level indicator tube bracketbolt-(1).Remove the oil level indicator and tube-(2) bysliding the tube out from the lower crankcase hole.Remove and discard the O-ring from the oil level indicatort ...