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 UnitIntake and Exhaust Camshaft, Bearing Cap, and Lash Adjuster Installation (LAF, LEA, or LUK) Valvetrain Valve Actuating Assembly Valve Tappets/Lifters
Exhaust Camshaft InstallationInstall the hydraulic lash adjusters into their bores in thecylinder head and lubricate. Refer toAdhesives, Fluids, Lubricants, and Sealers.Lubricate the valve tips. Refer toAdhesives, Fluids, Lubricants, and Sealers.Note:Used roller followers must be returned to the ori ...