GM Service Manual Online
For 1990-2009 cars only

Radiator Replacement LE5

Removal Procedure

  1. Remove the cooling fan and shroud assembly. Refer to Cooling Fan and Shroud Replacement .

  2. Object Number: 1203511  Size: SH
  3. Remove and discard the condenser mounting bolts.

  4. Object Number: 1201922  Size: SH
  5. Push upward on the condenser and downward on the radiator to unsnap the condenser mounting tabs from the radiator clips.
  6. Remove and discard the condenser mounting nuts from the radiator.

  7. Object Number: 1202420  Size: SH
  8. Remove the radiator from the vehicle.

Installation Procedure


    Object Number: 1202420  Size: SH
  1. Install the radiator to the vehicle.

  2. Object Number: 1201922  Size: SH
  3. Push upward on the radiator and downward on the condenser to snap the condenser mounting tabs into the radiator clips.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Install new condenser mounting nut to the radiator.
  6. Tighten
    Tighten the nuts to 6 N·m (53 lb in).


    Object Number: 1203511  Size: SH
  7. Install new condenser mounting bolts.
  8. Tighten
    Tighten the bolts to 6 N·m (53 lb in).

  9. Install the cooling fan and shroud assembly. Refer to Cooling Fan and Shroud Replacement .

Radiator Replacement LZ4, LZ9

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure

  1. Drain the coolant. Refer to Cooling System Draining and Filling .

  2. Object Number: 1202407  Size: SH
  3. Loop a rope around each of the upper 2 tabs of the condenser and tie the rope around the upper tie bar.
  4. Remove the upper radiator support brackets. Refer to Radiator Support Bracket Replacement .

  5. Object Number: 1778508  Size: SH
  6. Reposition the radiator inlet hose clamp at the radiator using the J 38185 .
  7. Remove the radiator inlet hose from the radiator.
  8. Remove the front air dam. Refer to Front Air Dam Replacement .

  9. Object Number: 1203530  Size: SH
  10. Remove the right engine splash shield retainers.
  11. Remove the right engine splash shield.

  12. Object Number: 1203535  Size: SH
  13. Remove the left engine splash shield retainers.
  14. Remove the left engine splash shield.

  15. Object Number: 1778509  Size: SH
  16. Reposition the radiator outlet hose clamp at the radiator using the J 38185 .
  17. Remove the radiator outlet hose from the radiator.
  18. Remove the transmission oil cooler pipes from the transmission. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection for the 4T45 transaxle or Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection for the 4T65 transaxle.

  19. Object Number: 1203468  Size: SH
  20. Remove the lower radiator support bracket bolts.
  21. Remove the lower radiator support brackets.
  22. Remove the radiator lower mounts.

  23. Object Number: 1203511  Size: SH
  24. Remove and discard the condenser mounting bolts from the radiator.

  25. Object Number: 1201922  Size: SH
  26. Push upward on the radiator and downward on the condenser to unsnap the condenser mounting tabs from the radiator clips.
  27. Remove and discard the condenser mounting nuts from the radiator.

  28. Object Number: 1336545  Size: SH
  29. Remove the radiator air side seals.

  30. Object Number: 1202423  Size: SH
  31. Remove the radiator and cooling fan shroud assembly from the vehicle.

  32. Object Number: 1202424  Size: SH
  33. Pry upward on the fan shroud tabs at the radiator clips.
  34. Remove the cooling fan and shroud assembly from the radiator.

Installation Procedure


    Object Number: 1212433  Size: SH
  1. Install the cooling fan and shroud assembly to the radiator.
  2. Snap the fan shroud tabs into the radiator clips.

  3. Object Number: 1202423  Size: SH
  4. Install the radiator and cooling fan shroud assembly to the vehicle.

  5. Object Number: 1336545  Size: SH
  6. Install the radiator air side seals onto the condenser mounting tabs on the radiator.
  7. Notice: The bolt retaining the condenser to the radiator end tank is a special length and should be the ONLY bolt used upon reinstallation. The use of a longer bolt will damage the radiator end tank.

    Important: Replace the condenser mounting bolts and nuts.


    Object Number: 1201922  Size: SH
  8. Install the condenser mounting nuts to the radiator.
  9. Insert the condenser mounting tabs into the radiator clips.
  10. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1203511  Size: SH
  11. Install the condenser to the radiator bolts.
  12. Tighten
    Tighten the bolts to 6 N·m (53 lb in).


    Object Number: 1336474  Size: SH
  13. Bend the radiator air side seals and insert the seals into the channel of the intake air splash shields.

  14. Object Number: 1337348  Size: SH
  15. The radiator air side seals must be in the proper position for proper air flow.
  16. Important: Replace the radiator lower mounts as a pair or vibration may result.

  17. Install the radiator lower mounts.

  18. Object Number: 1203468  Size: SH
  19. Install the lower radiator support brackets.
  20. Install the lower radiator support bracket bolts.
  21. Tighten
    Tighten the bolts to 60 N·m (44 lb ft).

  22. Install the transmission oil cooler pipes to the transmission. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection for the 4T45 transaxle or Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection for the 4T65 transaxle.

  23. Object Number: 1778509  Size: SH
  24. Install the radiator outlet hose to the radiator.
  25. Reposition the radiator outlet hose clamp at the radiator using the J 38185 .

  26. Object Number: 1203535  Size: SH

    Important: Engine splash shields must be properly installed or reduced A/C and engine cooling system performance could occur.

  27. Install the left engine splash shield.
  28. Install the left engine splash shield retainers.

  29. Object Number: 1203530  Size: SH
  30. Install the right engine splash shield.
  31. Install the right engine splash shield retainers.
  32. Install the front air dam. Refer to Front Air Dam Replacement .
  33. Lower the vehicle.

  34. Object Number: 1778508  Size: SH
  35. Install the radiator inlet hose to the radiator.
  36. Reposition the radiator inlet hose clamp at the radiator using the J 38185 .

  37. Object Number: 1202407  Size: SH
  38. Remove the rope attached to the condenser and upper tie bar.
  39. Install the upper radiator support brackets. Refer to Radiator Support Bracket Replacement .
  40. Fill the coolant. Refer to Cooling System Draining and Filling .
  41. Inspect the transmission fluid level. Refer to Transmission Fluid Check for the 4T45 transaxle or Transmission Fluid Check for the 6T45 transaxle.

Radiator Replacement LY7

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure

  1. Drain the coolant. Refer to Cooling System Draining and Filling .

  2. Object Number: 1202407  Size: SH
  3. Loop a rope around each of the upper 2 tabs of the condenser and tie the rope around the upper tie bar.
  4. Remove the upper radiator support brackets. Refer to Radiator Support Bracket Replacement
  5. .


    Object Number: 1778404  Size: SH
  6. Reposition the radiator inlet hose clamp at the radiator using the pliers J 38185 .
  7. Remove the radiator inlet hose from the radiator.
  8. Remove the front air dam. Refer to Front Air Dam Replacement .
  9. .


    Object Number: 1203530  Size: SH
  10. Remove the right engine splash shield retainers.
  11. Remove the right engine splash shield.

  12. Object Number: 1203535  Size: SH
  13. Remove the left engine splash shield retainers.
  14. Remove the left engine splash shield.

  15. Object Number: 1778406  Size: SH
  16. Reposition the radiator outlet hose clamp at the radiator using the pliers J 38185 .
  17. Remove the radiator outlet hose from the radiator.
  18. Remove the transmission oil cooler pipes from the radiator.

  19. Object Number: 1203468  Size: SH
  20. Remove the lower radiator support bracket bolts.
  21. Remove the lower radiator support brackets.
  22. Remove the radiator lower mounts.

  23. Object Number: 1203511  Size: SH
  24. Remove and discard the condenser mounting bolts from the radiator.

  25. Object Number: 1201922  Size: SH
  26. Push upward on the radiator and downward on the condenser to unsnap the condenser mounting tabs from the radiator clips.
  27. Remove and discard the condenser mounting nuts from the radiator.

  28. Object Number: 1336545  Size: SH
  29. Remove the radiator air side seals.

  30. Object Number: 1202423  Size: SH
  31. Remove the radiator and cooling fan shroud assembly from the vehicle.

  32. Object Number: 1202424  Size: SH
  33. Pry upward on the fan shroud tabs at the radiator clips.
  34. Remove the cooling fan and shroud assembly from the radiator.

Installation Procedure


    Object Number: 1212433  Size: SH
  1. Install the cooling fan and shroud assembly to the radiator.
  2. Snap the fan shroud tabs into the radiator clips.

  3. Object Number: 1202423  Size: SH
  4. Install the radiator and cooling fan shroud assembly to the vehicle.

  5. Object Number: 1336545  Size: SH
  6. Install the radiator air side seals onto the condenser mounting tabs on the radiator.
  7. Notice: The bolt retaining the condenser to the radiator end tank is a special length and should be the ONLY bolt used upon reinstallation. The use of a longer bolt will damage the radiator end tank.

    Important: Replace the condenser mounting bolts and nuts.


    Object Number: 1201922  Size: SH
  8. Install the condenser mounting nuts to the radiator.
  9. Insert the condenser mounting tabs into the radiator clips.
  10. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1203511  Size: SH
  11. Install the condenser to the radiator bolts.
  12. Tighten
    Tighten the bolts to 6 N·m (53 lb in).


    Object Number: 1336474  Size: SH
  13. Bend the radiator air side seals and insert the seals into the channel of the intake air splash shields.

  14. Object Number: 1337348  Size: SH
  15. The radiator air side seals must be in the proper position for proper air flow.
  16. Important: Replace the radiator lower mounts as a pair or vibration may result.

  17. Install the radiator lower mounts.

  18. Object Number: 1203468  Size: SH
  19. Install the lower radiator support brackets.
  20. Install the lower radiator support bracket bolts.
  21. Tighten
    Tighten the bolts to 60 N·m (44 lb ft).

  22. Install the transmission oil cooler pipes to the radiator.

  23. Object Number: 1778406  Size: SH
  24. Install the radiator outlet hose to the radiator.
  25. Reposition the radiator outlet hose clamp at the radiator using the pliers J 38185 .

  26. Object Number: 1203535  Size: SH

    Important: Engine splash shields must be properly installed or reduced A/C and engine cooling system performance could occur.

  27. Install the left engine splash shield.
  28. Install the left engine splash shield retainers.

  29. Object Number: 1203530  Size: SH
  30. Install the right engine splash shield.
  31. Install the right engine splash shield retainers.
  32. Install the front air dam. Refer to Front Air Dam Replacement .
  33. Lower the vehicle.

  34. Object Number: 1778404  Size: SH
  35. Install the radiator inlet hose to the radiator.
  36. Reposition the radiator inlet hose clamp at the radiator using the pliers J 38185 .

  37. Object Number: 1202407  Size: SH
  38. Remove the rope attached to the condenser and upper tie bar.
  39. Install the upper radiator support brackets. Refer to Radiator Support Bracket Replacement .
  40. Fill the coolant. Refer to Cooling System Draining and Filling .
  41. Inspect the transmission fluid level. Refer to Transmission Fluid Check .