GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 339454  Size: SH
  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Turn the drain cock counterclockwise in order to open the drain cock.
  3. Pull the stem out of the radiator body.
  4. Clean or replace the seal and stem as necessary.

Installation Procedure


    Object Number: 339454  Size: SH
  1. Return the stem to the radiator body.
  2. Turn the drain clockwise in order to close the drain cock.
  3. Fill the cooling system. Refer to Cooling System Draining and Filling .