GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 38185 Hose Clamp Pliers

  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Remove the radiator support. Refer to Radiator Support Replacement .

  3. Object Number: 931722  Size: SH
  4. Disengage tension on the surge tank outlet hose clamp at the surge tank using the J 38185 .
  5. Disconnect the surge tank outlet hose from the surge tank.

  6. Object Number: 931717  Size: SH
  7. Disconnect the surge tank outlet hose assembly from the support tabs on the cooling fan shroud.

  8. Disconnect the surge tank outlet hose from the underhood junction box retainer clip (1).
  9. Disengage tension on the surge tank outlet hose clamp at the heater pipe assembly.

  10. Object Number: 1218472  Size: SH
  11. Disconnect the surge tank outlet hose from the heater pipe assembly.
  12. Disengage tension on the radiator inlet hose clamp at the radiator using J 38185 .
  13. Disconnect the radiator inlet hose from the radiator.
  14. Disengage tension on the radiator inlet hose clamp at the engine using J 38185 .

  15. Object Number: 923780  Size: SH
  16. Disconnect the radiator inlet hose from the engine.
  17. Remove the radiator inlet hose.

  18. Object Number: 933231  Size: SH
  19. Disengage tension on the surge tank outlet hose clamp at the thermostat housing (1).
  20. Disconnect the surge tank outlet hose from the thermostat housing.

  21. Object Number: 931706  Size: SH
  22. Remove the surge tank outlet hose assembly from the vehicle.

Installation Procedure


    Object Number: 931706  Size: SH

    Important: Lubricate the inside diameters of the hoses with clean coolant prior to installation.

  1. Install the surge tank outlet hose assembly to the vehicle.

  2. Object Number: 933231  Size: SH
  3. Connect the surge tank outlet hose to the thermostat housing (1).
  4. Engage tension on the surge tank outlet hose clamp at the thermostat housing.
  5. Install the radiator inlet hose.

  6. Object Number: 923780  Size: SH
  7. Connect the radiator inlet hose to the engine.
  8. Engage tension on the radiator inlet hose clamp at the engine using J 38185 .
  9. Connect the radiator inlet hose to the radiator.
  10. Engage tension on the radiator inlet hose clamp at the radiator using J 38185 .

  11. Object Number: 1218472  Size: SH
  12. Connect the surge tank outlet hose to the heater pipe assembly.
  13. Engage tension on the surge tank outlet hose clamp at the heater pipe assembly.

  14. Object Number: 931717  Size: SH
  15. Connect the surge tank outlet hose to the underhood junction box retainer clip (1).
  16. Connect the surge tank outlet hose assembly to the support tabs on the cooling fan shroud.

  17. Object Number: 931722  Size: SH
  18. Connect the surge tank outlet hose to the surge tank.
  19. Engage tension on the surge tank outlet hose clamp at the surge tank using the J 38185 .
  20. Install the radiator support. Refer to Radiator Support Replacement .
  21. Fill the cooling system. Refer to Cooling System Draining and Filling .