GM Service Manual Online
For 1990-2009 cars only

Tools Required

SA9111E Hose Clamp Pliers

Removal Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Lower the vehicle.

  3. Object Number: 873719  Size: SH
  4. Reposition the surge tank inlet hose clamp.
  5. Remove the surge tank inlet hose from the surge tank.

  6. Object Number: 889782  Size: SH
  7. Remove the underhood junction block bracket nuts  (1, 2).
  8. Remove the underhood junction block bracket bolt  (3).
  9. Lift the underhood junction block bracket and position away from the surge tank.

  10. Object Number: 873720  Size: SH
  11. Remove surge tank bolt. Lift surge tank and reposition the surge tank outlet hose clamp using SA9111E .
  12. Remove surge tank outlet hose.

  13. Object Number: 873721  Size: SH
  14. Disconnect the coolant level sensor electrical connector.
  15. Remove surge tank.

Installation Procedure


    Object Number: 873721  Size: SH
  1. Install the surge tank.
  2. Connect the coolant level sensor electrical connector.

  3. Object Number: 873720  Size: SH
  4. With the surge tank raised, install the surge tank outlet hose.
  5. Reposition the hose clamp using SA9111E to secure the hose.
  6. Notice: Refer to Fastener Notice in the Preface section.

  7. Install the surge tank bolt.
  8. Tighten
    Tighten the bolt to 6.5 N·m (58 lb in).


    Object Number: 889782  Size: SH
  9. Set the underhood junction block bracket into position.
  10. Install the underhood junction block bracket nuts  (1, 2).
  11. Tighten
    Tighten the nuts to 10 N·m (88 lb in).

  12. Install the underhood junction block bracket bolt  (3).
  13. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).


    Object Number: 873719  Size: SH
  14. Install the surge tank inlet hose to the surge tank.
  15. Reposition the hose clamp to secure the hose.
  16. Fill the cooling system. Refer to Cooling System Draining and Filling .