Removal ProcedureRaise and support the vehicle. Refer toLifting and Jacking the Vehicle.
Remove the fill plug-(1).Installation Procedure
Clean the fill plug and apply adhesive GM-P/N-12345493 (Canadian-P/N-10953488) tothe threads.
Caution:Refer toFastener Caution.
Install the fill plug-(1) and tighten to 39-Y (29-lb-ft).Lower the vehicle.Water Pump and Balance Shaft Chain and Tensioner Installation Engine Block Cylinder Block Balance Shaft
Caution:Refer toFastener Caution.Note:If the balance shafts are not properly timed to the engine,the engine may vibrate and make noise.Install the upper balance shaft chain guide-(1)and bolts and tighten to12-Y-(106-lb-in).Install the small balance shaft chainguide-(1).Install the balance shaft chai ...