GM Service Manual Online
For 1990-2009 cars only

Radiator Replacement Standard Duty Cooling

Special Tools

    • J 38185 Hose Clamp Pliers
    • J 38778 Door Trim Pad Clip Remover

Removal Procedure

  1. Drain the coolant. Refer to Cooling System Draining and Filling.
  2. Remove the electric cooling fan assembly. Refer to Engine Coolant Fan Replacement.
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

  4. Object Number: 1349581  Size: SH
  5. Remove the lower condenser mounting bolts.

  6. Object Number: 1349583  Size: SH
  7. Remove the upper condenser mounting bolts.

  8. Object Number: 1334986  Size: SH
  9. Disconnect the lower retainer pins of the side air baffle from the radiator.
  10. Lower the vehicle.
  11. Remove the radiator support bracket bolts.
  12. Remove the radiator support brackets.
  13. Use J 38778 to remove the radiator/condenser upper support.

  14. Object Number: 1334989  Size: SH
  15. Use J 38185 to disconnect the surge tank inlet hose from the radiator. Reposition the hose aside.

  16. Object Number: 1334988  Size: SH
  17. Using J 38185 disengage tension on the radiator inlet hose clamp and disconnect the hose from the radiator.
  18. Using J 38185 disengage tension on the radiator outlet hose clamp and disconnect the hose from the radiator.
  19. Disconnect the upper retainer pins on the side air baffle from the radiator.
  20. Remove the radiator.

Installation Procedure

  1. Install the radiator.
  2. Connect the upper retainer pins of the side air baffle to the radiator.
  3. Connect the radiator outlet hose to the radiator. Use J 38185 to position the radiator outlet hose clamp to secure the hose.

  4. Object Number: 1334988  Size: SH
  5. Connect the radiator inlet hose to the radiator. Use J 38185 to position the radiator inlet hose clamp to secure the hose.

  6. Object Number: 1334989  Size: SH
  7. Connect the surge tank inlet hose to the radiator. Use J 38185 to position the hose clamp to secure the hose.
  8. Install the radiator/condenser upper support.
  9. Install the radiator support brackets.
  10. Caution: Refer to Fastener Caution in the Preface section.

  11. Install the radiator support bracket bolts and tighten to 9 N·m (80 lb in).
  12. Raise and support the vehicle.

  13. Object Number: 1334986  Size: SH
  14. Connect the lower retainer pins of the side air baffle to the radiator.

  15. Object Number: 1349583  Size: SH
  16. Install the upper condenser mounting bolts and tighten to 5.4 N·m (48 lb in).

  17. Object Number: 1349581  Size: SH
  18. Install the lower condenser mounting bolts and tighten to 5.4 N·m (48 lb in).
  19. Lower the vehicle.
  20. Install the electric cooling fan assembly. Refer to Engine Coolant Fan Replacement.
  21. Fill the cooling system. Refer to Cooling System Draining and Filling.

Radiator Replacement Heavy Duty Cooling

Special Tools

    • J 38185 Hose Clamp Pliers
    • J 38778 Door Trim Pad Clip Remover

Removal Procedure

  1. Drain the coolant. Refer to Cooling System Draining and Filling.
  2. Remove the electric cooling fan assembly. Refer to Engine Coolant Fan Replacement.
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

  4. Object Number: 1349581  Size: SH
  5. Remove the lower condenser mounting bolts.

  6. Object Number: 1349583  Size: SH
  7. Remove the upper condenser mounting bolts.

  8. Object Number: 1350217  Size: SH

    Note: Reposition the condenser to access the transmission oil cooler mounting bolts.

  9. Remove the transmission oil cooler mounting bolts.

  10. Object Number: 1334986  Size: SH
  11. Disconnect the lower retainer pins of the side air baffle from the radiator.
  12. Lower the vehicle.
  13. Remove the radiator support bracket bolts.
  14. Remove the radiator support brackets.
  15. Use J 38778 to remove the radiator/condenser upper support.

  16. Object Number: 1334989  Size: SH
  17. Use J 38185 to disconnect the surge tank inlet hose from the radiator. Reposition the hose aside.

  18. Object Number: 1334988  Size: SH
  19. Using J 38185 disengage tension on the radiator inlet hose clamp and disconnect the hose from the radiator.
  20. Using J 38185 disengage tension on the radiator outlet hose clamp and disconnect the hose from the radiator.
  21. Disconnect the upper retainer pins on the side air baffle from the radiator.
  22. Remove the radiator.

Installation Procedure

  1. Install the radiator.
  2. Connect the upper retainer pins of the side air baffle to the radiator.
  3. Connect the radiator outlet hose to the radiator. Use J 38185 to position the radiator outlet hose clamp to secure the hose.

  4. Object Number: 1334988  Size: SH
  5. Connect the radiator inlet hose to the radiator. Use J 38185 to position the radiator inlet hose clamp to secure the hose.

  6. Object Number: 1334989  Size: SH
  7. Connect the surge tank inlet hose to the radiator. Use J 38185 to position the hose clamp to secure the hose.
  8. Install the radiator/condenser upper support.
  9. Install the radiator support brackets.
  10. Caution: Refer to Fastener Caution in the Preface section.

  11. Install the radiator support bracket bolts and tighten to 9 N·m (80 lb in).
  12. Raise and support the vehicle.

  13. Object Number: 1334986  Size: SH
  14. Connect the lower retainer pins of the side air baffle to the radiator.

  15. Object Number: 1350217  Size: SH
  16. Install the transmission oil cooler mounting bolts and tighten to 5 N·m (44 lb in).

  17. Object Number: 1349583  Size: SH
  18. Install the upper condenser mounting bolts and tighten to 5.4 N·m (48 lb in).

  19. Object Number: 1349581  Size: SH
  20. Install the lower condenser mounting bolts and tighten to 5.4 N·m (48 lb in).
  21. Lower the vehicle.
  22. Install the electric cooling fan assembly. Refer to Engine Coolant Fan Replacement.
  23. Fill the cooling system. Refer to Cooling System Draining and Filling.