Removal Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Drain Valve

Courtesy of GENERAL MOTORS CORP.

Drain the radiator. Refer to Draining and Filling Cooling System (Static Fill) or Draining and Filling Cooling System (GE 47716 Fill) .
Unscrew the drain plug from the radiator end tank. Then using a flat-bladed tool, gently pry the plug from the end tank.