GM Service Manual Online
For 1990-2009 cars only

Radiator Replacement L81

Removal Procedure

  1. Remove the battery. Refer to Battery Replacement in Engine Electrical.

  2. Object Number: 894561  Size: SH
  3. Drain the coolant. Refer to Cooling System Draining and Filling .
  4. Remove the bolts which secure the power steering fluid reservoir to the fan shroud.
  5. Position the reservoir rearward in the car.

  6. Object Number: 894626  Size: SH
  7. Disconnect both of the cooling fan electrical connectors.
  8. Remove the electrical connectors from the connector retainer by sliding the connector as shown.
  9. Remove the pusher fan electrical harness from the fan shroud retainer tabs.

  10. Object Number: 893761  Size: SH
  11. Remove the upper transaxle cooler line from the radiator end tank and unsnap the front end tank retainer.
  12. Cap or tape off the cooler line to prevent oil loss or contamination.

  13. Object Number: 894180  Size: SH
  14. Remove the clamp which secures the upper radiator hose to the radiator.
  15. Remove the upper radiator hose from the radiator.

  16. Object Number: 894328  Size: SH
  17. Remove the fan shroud bolts.
  18. Remove the fan shroud from the radiator.

  19. Object Number: 894726  Size: SH
  20. Remove the forward wiring harness from the retaining clips.

  21. Object Number: 893929  Size: SH
  22. Remove the lower radiator hose clamp.
  23. Remove the hose from the radiator.

  24. Object Number: 893763  Size: SH
  25. Remove the lower transaxle cooler line from the radiator.
  26. Cap or tape the cooler line and the end tank to prevent oil spillage or contamination.

  27. Object Number: 893765  Size: SH
  28. Remove the wiring harness clips from the upper radiator mounting bracket.
  29. Remove the bolts from the radiator upper mount bracket.
  30. Remove the bracket and the rubber mounts.

  31. Object Number: 894532  Size: SH
  32. Remove the clamp from the radiator coolant air bleed hose.
  33. Remove the hose from the radiator.
  34. Using a piece of wire or a plastic tie, support the condenser from the upper rail.

  35. Object Number: 894382  Size: SH

    Important: Do not open up the A/C system.

  36. Remove the bolt which secures the condenser block to the radiator end tank.

  37. Object Number: 894018  Size: SH
  38. Remove the bolts which secure the condenser to the radiator.
  39. Pull the condenser and the pusher fan assembly down slightly to disengage the tabs from the radiator.
  40. Leaving the condenser and pusher fan in the vehicle, remove the radiator from the vehicle.

  41. Object Number: 894311  Size: SH
  42. Remove the gaskets which separate the upper and the lower radiator from the condenser.

Installation Procedure


    Object Number: 894311  Size: SH
  1. Install the gaskets between the upper and lower radiator and the condenser.

  2. Object Number: 894720  Size: SH
  3. Install the radiator lower mounting pins into the rubber mounts.

  4. Object Number: 894532  Size: SH
  5. Install the radiator coolant air bleed hose to the radiator.
  6. Install the radiator coolant air bleed hose clamp at the 1 o'clock position.
  7. Install the wiring clips to the upper radiator mounting bracket.

  8. Object Number: 898634  Size: SH
  9. Position the upper radiator mounts over the upper pins.
  10. Notice: Refer to Fastener Notice in the Preface section.

  11. Install the radiator bracket bolts
  12. Tighten
    Tighten the bolts to 6 N·m (53 lb in).

  13. Install the wiring clips to the upper radiator mount bracket.

  14. Object Number: 894033  Size: SH
  15. Position the condenser tabs under the radiator tabs.
  16. Install the condenser to radiator bolts.
  17. Tighten
    Tighten the bolts to 4 N·m (35 lb in).


    Object Number: 894311  Size: SH
  18. Install the lower radiator to the condenser gasket.

  19. Object Number: 894382  Size: SH
  20. Install the bolt which secures the condenser block to the radiator end tank.
  21. Tighten
    Tighten the bolt to 4 N·m (35 lb in).

  22. Remove the condenser support wire or the plastic tie.

  23. Object Number: 893763  Size: SH
  24. Remove the cap and install the lower transaxle cooler line to radiator.
  25. Tighten
    Tighten the cooler line to 4 N·m (35 lb in).


    Object Number: 893929  Size: SH

    Important: The white line on the hose should be installed at the 12 o'clock position.

  26. Install the lower radiator hose to the radiator.
  27. Install the clamp at the 11 o'clock position.


    Object Number: 894726  Size: SH
  28. Install the forward wiring harness into the forward rail clips.

  29. Object Number: 894552  Size: SH
  30. Install the fan and shroud assembly onto the radiator lower tabs.

  31. Object Number: 894328  Size: SH

    Important: Verify that the pusher fan electrical harness is not between the fan shroud and the radiator.

  32. Install the bolts that secure the fan shroud to the radiator.
  33. Tighten
    Tighten the bolts to 4 N·m (35 lb in).


    Object Number: 893761  Size: SH
  34. Install the upper transaxle oil cooler line into the radiator end tank retainer.
  35. Remove the cap from the oil cooler line.
  36. Install the oil cooler line to the radiator.
  37. Tighten
    Tighten the cooler line to 25 N·m (18 lb ft).


    Object Number: 894626  Size: SH
  38. Route the pusher fan electrical harness around the outside of the radiator end tank to the upper fan shroud.
  39. Install the fan electrical connectors to the connector retainers as shown.
  40. Connect the fan electrical connectors.
  41. Install the pusher fan harness under the routing tabs on the fan shroud.

  42. Object Number: 894180  Size: SH
  43. Install the upper radiator hose to the radiator.
  44. Install the clamp to the 12 o'clock position.


    Object Number: 894561  Size: SH
  45. Install the bolts which secure the power steering fluid reservoir to the fan shroud.
  46. Tighten
    Tighten the bolts to 5 N·m (44 lb in).


    Object Number: 886658  Size: SH
  47. Install the battery. Refer to Battery Replacement in Engine Electrical.
  48. Install the fan control module by sliding down onto the bracket.
  49. Fill the cooling system. Refer to Cooling System Draining and Filling .