GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 37097-A Hose Clamp Remover/Installer.

  1. Drain the engine coolant. Refer to Cooling System Draining and Filling .
  2. Remove the upper two bolts from the hood latch support.

  3. Object Number: 165589  Size: SH
  4. Remove the upper radiator seal.

  5. Object Number: 165598  Size: SH
  6. Disconnect the inlet and outlet radiator hoses from the radiator and position out of the way.

  7. Object Number: 420678  Size: SH
  8. Remove the bolt from the transmission oil cooler pipe clip at the lower tie bar.
  9. Unscrew the transmission cooler lines from the radiator and position out of the way.

  10. Object Number: 165594  Size: SH
  11. Remove the overflow hose from the radiator.
  12. Remove the cooling fans. Refer to Engine Cooling Fan Replacement .

  13. Object Number: 204025  Size: SH
  14. Disconnect the A/C condenser from the radiator.

  15. Object Number: 165588  Size: SH
  16. Remove the upper radiator mounting brackets.
  17. Remove the radiator from the vehicle.

Installation Procedure


    Object Number: 165588  Size: SH
  1. Install the radiator to the vehicle. Place the bottom of the radiator in the lower mounts.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install the upper radiator mounting brackets and bolts.
  4. Tighten
    Tighten the radiator mounting bracket bolts 10 N·m (89 lb in).

    Important: The bolt retaining the condenser to the radiator end tank is a 15 mm (0.6 in) length and should be the ONLY bolt used upon reinstallation. The use of a longer bolt will damage the radiator end tank.


    Object Number: 204025  Size: SH
  5. Connect the A/C condenser to the radiator.
  6. Tighten
    Tighten the condenser mounting bracket bolts 13 N·m (10 lb ft).

  7. Install the cooling fans. Refer to Engine Cooling Fan Replacement .

  8. Object Number: 165594  Size: SH
  9. Install the overflow hose from the radiator.
  10. Connect the transaxle oil cooler lines to the radiator side tanks.
  11. Tighten
    Tighten the transaxle oil cooler line fittings to 31 N·m (23 lb ft).


    Object Number: 420678  Size: SH
  12. Install the cooler line clip and bolt to the lower tie bar.
  13. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 165598  Size: SH
  14. Install the inlet and outlet radiator hoses to the radiator.

  15. Object Number: 165589  Size: SH
  16. Install the upper radiator seal.
  17. Install the upper two bolts from the hood latch support.
  18. Tighten
    Tighten the bolts to 9 N·m (80 lb in).

  19. Fill the cooling system. Refer to Cooling System Draining and Filling .
  20. Inspect for coolant leaks. Refer to Cooling System Leak Testing .