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.
Drain Plug Replacement Automatic Transmission Unit
Transmission Fluid Drain and Fill Automatic Transmission UnitOil Pump Suction Pipe and Screen Cleaning and Inspection Engine Lubrication Oil Pump
Cleaning ProcedureClean the oil pump pipe and screen with solvent.Warning:Refer toSafety Glasses Warning.Dry the oil pump pipe and screen with compressed air.Inspection ProcedureInspect the mounting surface-(1) for possibleleakage paths.Inspect the oil pump pipe tube-(2) for cracks,imperfections and ...