GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  2. Object Number: 524198  Size: SH
  3. Drain the cooling system. Refer to Cooling System Draining and Filling .
  4. Turn the drain cock counterclockwise until the metal pin on the drain cock is aligned with the opening slot.

  5. Object Number: 524186  Size: SH
  6. Pull the drain cock straight out of the radiator.

Installation Procedure


    Object Number: 524186  Size: SH
  1. Align the metal pin on the drain cock with the opening slot on the radiator.

  2. Object Number: 524198  Size: SH
  3. Push the drain cock into the radiator slot.
  4. Turn the drain cock clockwise until fully seated.
  5. Fill the cooling system. Refer to Cooling System Draining and Filling .