GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure


    Object Number: 672639  Size: SH
  1. Remove the fan shroud. Refer to Fan Shroud Replacement .
  2. Reposition the throttle body heater outlet hose clamp from the radiator using J 38185 .
  3. Remove the throttle body heater outlet hose from the radiator.

  4. Object Number: 64025  Size: SH
  5. Reposition the radiator inlet hose clamp from the water pump using J 38185 .
  6. Remove the radiator inlet hose from the water pump.

  7. Object Number: 672481  Size: SH
  8. Reposition the surge tank inlet hose clamp from the radiator using J 38185 .
  9. Remove the surge tank inlet hose from the radiator.

  10. Object Number: 74086  Size: SH
  11. Remove the connector position assurance lock.
  12. Disconnect the mass air flow sensor electrical connector.

  13. Object Number: 71421  Size: SH
  14. If equipped, remove the automatic transmission oil cooler lines from the radiator.

  15. Object Number: 175435  Size: SH

    Important : It is not necessary to disconnect the air conditioning lines from the condenser.

  16. Remove the condenser from the radiator and position it forward.
  17. Remove the radiator from the vehicle.

Installation Procedure


    Object Number: 175435  Size: SH
  1. Install the radiator.
  2. Install the condenser into the four retaining tabs on the radiator.

  3. Object Number: 71421  Size: SH

    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.

  4. If equipped, install the automatic transmission oil cooler lines to the radiator.
  5. Tighten
    Tighten the cooler lines to 25 N·m (18 lb ft).


    Object Number: 74086  Size: SH
  6. Connect the mass air flow sensor electrical connector.
  7. Install the connector position assurance lock.

  8. Object Number: 672481  Size: SH
  9. Install the surge tank inlet hose to the radiator.
  10. Reposition the surge tank inlet hose clamp to the radiator using J 38185 .

  11. Object Number: 64025  Size: SH
  12. Install the radiator inlet hose to the water pump.
  13. Reposition the radiator inlet hose clamp to the water pump using J 38185 .

  14. Object Number: 672639  Size: SH
  15. Install the throttle body heater outlet hose to the radiator.
  16. Reposition the throttle body heater outlet hose clamp to the radiator using J 38185 .
  17. Install the fan shroud. Refer to Fan Shroud Replacement .