GM Service Manual Online
For 1990-2009 cars

Removal Procedure


    Object Number: 339454  Size: SH
  1. Drain cooling system. Refer to Cooling System Draining and Filling
  2. Use a ¼ in drive in order to open and release the drain cock.
  3. Remove drain cock.

Installation Procedure


    Object Number: 339454  Size: SH
  1. Install drain cock.
  2. Fill cooling system. Refer to Cooling System Draining and Filling .