GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Drain the coolant from the radiator. Refer to Cooling System Draining and Filling .

  2. Object Number: 3428  Size: SH
  3. Remove the radiator drain cock.

  4. Object Number: 3342  Size: SH
  5. Remove the seal.

  6. Object Number: 3343  Size: SH
  7. Remove the drain cock body.

Installation Procedure


    Object Number: 3343  Size: SH
  1. Install the drain cock body.

  2. Object Number: 3342  Size: SH
  3. Install the seal.

  4. Object Number: 3428  Size: SH
  5. Install the drain cock.
  6. Fill the radiator with the specified coolant and concentration. Refer to Cooling System Draining and Filling .
  7. Inspect the coolant system for leaks. Refer to Cooling System Leak Testing .