GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1224213  Size: SH

    Caution: As long as there is pressure in the cooling system, the temperature can be considerably higher than the boiling temperature of the solution in the radiator without causing the solution to boil. Removal of the pressure cap while the engine is hot and pressure is high will cause the solution to boil instantaneously -- possibly with explosive force -- spewing the solution over the engine, fenders and the person removing the cap.

  1. Drain the engine coolant to below the level of the surge tank.
  2. Loosen the overflow hose clamps and disconnect the overflow hoses from the surge tank (1).
  3. Remove the surge tank (2).
  4. Clean the inside and the outside of the surge tank and the surge tank cap with soap and water.
  5. Rinse the surge tank and the cap thoroughly.
  6. Inspect the surge tank and the cap for cracks or other damage.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1224214  Size: SH
  1. Install the surge tank with pressing down (2).
  2. Connect the overflow hoses to the surge tank (1).
  3. Secure the overflow hoses to the surge tank with the hose clamps.
  4. Fill the surge tank with coolant to the MAX mark.