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 RepairsEngine Front Cover and Oil Pump Installation Engine Block Cylinder Block Cyl Block Front Cover
Install the engine front cover-(1) with a newgasket-(2).Caution:Refer toFastener Caution.Note:The center bolt-(1) should be tightenedlast.Install the engine front cover bolts and tighten to25-Y-(18-lb-ft).Install the long water pump bolt-(1) and tightento25-Y-(18-lb-ft).Install the accessory drive b ...