GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling .

  2. Object Number: 1272787  Size: SH
  3. Remove the radiator drain plug by unscrewing counter clockwise and pulling straight out. The seal usually comes out attached to the plug.
  4. Clean the drain and the drain plug.

Installation Procedure


    Object Number: 1272787  Size: SH
  1. Install the seal on the drain plug stem.
  2. Install the drain plug by screwing in a clockwise direction. Make sure that the body is fully seated in the side tank.
  3. Fill the cooling system. Refer to Cooling System Draining and Filling .