Acura CL Integra NSX RL RSX TL TSX 2001-2006

Radiator

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Removal & Installation



2001-03 TL Models
With J32a1 Engine
  1. Drain the engine coolant.
  2.  
  3. Remove the upper and lower radiator hoses.
  4.  
  5. Disconnect the fan motor connectors.
  6.  
  7. Remove the radiator upper brackets, then pull up the radiator.
  8.  
  9. Remove the fan shroud assemblies and other parts from the radiator.
  10.  
  11. Install the radiator in the reverse order of removal.
  12.  
  13. Set the upper and lower cushions securely.
  14.  
  15. Fill the radiator with engine coolant and bleed the air.

    Click image to see an enlarged view

    Fig. Radiator and fan mounting- 2001- 03 TL with J32A1 engine

  16.  

With J32a2 Engine
  1. Drain the engine coolant.
  2.  
  3. Remove the upper radiator hose and lower radiator hose.
  4.  
  5. Disconnect the fan motor connectors.
  6.  
  7. Disconnect the radiator fan switch C connector.
  8.  
  9. Remove the radiator upper brackets, then pull up the radiator.
  10.  
  11. Remove the fan shroud assemblies and other parts from the radiator.
  12.  
  13. Install the radiator in the reverse order of removal. Make sure the upper and lower cushions are set securely.
  14.  
  15. Fill the radiator with engine coolant and bleed the air.

    Click image to see an enlarged view

    Fig. Radiator and fan mounting- 2001- 03 TL with J32A2 engine

  16.  

2004-06 TL Models
  1. Drain the engine coolant.
  2.  
  3. Remove the front bulkhead cover.
  4.  
  5. Remove the upper radiator hose and lower radiator hose from the radiator.
  6.  
  7. Disconnect the fan motor connectors.
  8.  
  9. Remove the upper bracket cushions, then pull up the radiator.
  10.  
  11. Remove the fan shroud assemblies and other parts from the radiator.
  12.  
  13. Install the radiator in the reverse order of removal. Make sure the upper and lower cushions are set securely.
  14.  
  15. Fill the radiator with engine coolant, then bleed air from the cooling system.

    Click image to see an enlarged view

    Fig. Radiator and fan assemblies- 2004- 06 TL models

  16.  

2005-06 RL Models
  1. Drain the engine coolant.
  2.  
  3. Remove the right upper fender trim, battery trim, left upper fender trim, then remove the upper grille cover.
  4.  
  5. Remove the splash shield.
  6.  
  7. Remove the air cleaner.
  8.  
  9. Remove the automatic transmission fluid (ATF) cooler hoses from the radiator.
  10.  
  11. Remove the upper radiator hose and lower radiator hose from the radiator.
  12.  
  13. Disconnect the radiator fan control (RFC) unit connectors. Remove the harness clamps and A/C compressor clutch connector.
  14.  
  15. Remove the upper bracket cushions, then pull up the radiator.
  16.  
  17. Disconnect the fan motor connectors, then remove the fan shroud assemblies and other parts from the radiator.
  18.  
  19. Install the radiator in the reverse order of removal. Make sure the upper and lower cushions are set securely.
  20.  
  21. Fill the radiator with engine coolant, then bleed air from the cooling system.

    Click image to see an enlarged view

    Fig. Exploded view of the radiator assembly- 2005- 06 RL models

  22.  

CL Models
  1. Drain the engine coolant.
  2.  
  3. Remove the upper radiator hose and lower radiator hose.
  4.  
  5. Disconnect the fan motor connectors and radiator fan switch C connector (J32A2 engine (A/T)).
  6.  
  7. Remove the radiator upper brackets, then pull up the radiator.
  8.  
  9. Remove the fan shroud assemblies and other parts from the radiator.
  10.  
  11. Install the radiator in the reverse order of removal. Make sure the upper and lower cushions are set securely.
  12.  
  13. Fill the radiator with engine coolant and bleed the air.

    Click image to see an enlarged view

    Fig. Exploded view of the radiator and fans- CL models

  14.  

Integra Models
  1. Disconnect the negative battery cable.
    CAUTION
    Do not open the radiator draincock or remove the radiator cap when the cooling system is hot and under pressure. This can cause serious burns from hot, pressurized coolant. Allow a sufficient amount of time for the cooling system to cool down before opening up the system.

  2.  
  3. Loosen the radiator drain plug and, using a large capacity container, drain the cooling system.
  4.  
  5. Remove the radiator cap.
  6.  
  7. Disconnect the upper radiator hose.
    NOTE
    It is recommended that each clamp be matchmarked to the hose. Observe the marks and reinstall the clamps in exactly the same position when reinstalling the radiator.

  8.  
  9. Remove the radiator hoses.
  10.  
  11. Label and disengage the wiring from the thermosensors and the electric fan assemblies.
  12.  
  13. For vehicles with automatic transaxles, disconnect the oil cooler lines at the radiator. Plug the transaxle ports and the hose ends to contain the fluid and prevent contamination.
  14.  
  15. Remove the radiator. Be careful not to damage the radiators cooling fins while removing the unit. While the radiator is not heavy, it may be awkward. Use both hands to steady it during removal and installation
  16.  
  17. Installation is the reverse of the removal procedure. Refill the cooling system with the proper type and amount of coolant.
    NOTE
    You may need to bleed the air out of the system to avoid the possibility of a trapped air pocket that may cause engine overheating.



    Click image to see an enlarged view

    Fig. View of the upper radiator hold-down bracket and bolt



    Click image to see an enlarged view

    Fig. It may be necessary to move an A/C line out of the way for easier radiator removal



    Click image to see an enlarged view

    Fig. Using a pair of pliers, squeeze the spring clip to remove the clamp



    Click image to see an enlarged view

    Fig. Disengage the connector to release the wiring harness



    Click image to see an enlarged view

    Fig. The lower radiator hose at the radiator may be hard to reach, as shown on this Integra model. If this is the case, remove the hose at the other end where it may be more accessible



    Click image to see an enlarged view

    Fig. Thread the radiator bolts in by hand to avoid cross-threading them

  18.  

NSX Models
  1. Remove the spare tire.
  2.  
  3. Drain the radiator.
  4.  
  5. Disconnect the fan motor connector and the resistor connector.
  6.  
  7. Remove the upper and lower hoses from the radiator.
  8.  
  9. Remove the bracket and the radiator.
  10.  
  11. Install the radiator in the reverse order of removal. Set the upper and lower cushions securely.
  12.  
  13. Fill the radiator and bleed the air.
  14.  

RSX Models
  1. Drain the engine coolant.
  2.  
  3. Remove the front bumper.
  4.  
  5. Disconnect the hood switch connector, then remove the A/C line bracket mounting bolt, intake air duct mounting bolt, and harness clamps.
  6.  
  7. Remove the upper bracket and cushion mounting bolts, then remove the bulkhead.
  8.  
  9. Remove the upper radiator hose and lower radiator hose.
  10.  
  11. Disconnect the fan motor connectors and radiator fan switch connector, then pull up the radiator.
  12.  
  13. Remove the fan shroud assemblies and other parts from the radiator.

    Click image to see an enlarged view

    Fig. Exploded view of the radiator and fans- RSX models

  14.  
  15. Install the radiator in the reverse order of removal. Make sure the upper and lower cushions are set securely.
  16.  
  17. Fill the radiator with engine coolant, and bleed the air from the cooling system with the heater valve open.
  18.  

TSX Models
  1. Drain the engine coolant.
  2.  
  3. Remove the front bulkhead cover.
  4.  
  5. If equipped with an automatic transaxle, remove the automatic transmission fluid (ATF) cooler hoses (A/T). Plug the ATF cooler hoses and lines.
  6.  
  7. Remove the upper radiator hose and the lower radiator hose from the radiator.
  8.  
  9. On 2003- 04 models, disconnect the fan motor connectors and radiator fan switch connector
  10.  
  11. On 2005- 06 models, disconnect the Engine Coolant Temperature (ECT) sensor 2 connector
  12.  
  13. Remove the A/C compressor clutch connector, if equipped with A/C.
  14.  
  15. Remove the upper bracket and cushions, then pull up the radiator.
  16.  
  17. Remove the fan shroud assemblies and other parts from the radiator.
  18.  
  19. Install the radiator in the reverse order of removal. Make sure the upper and lower cushions are set securely.
  20.  
  21. Fill the radiator with engine coolant, then bleed air from the cooling system.
  22.  
  23. Check the ATF level in the automatic transmission (A/T).

    Click image to see an enlarged view

    Fig. Exploded view of the radiator- 2.4L engine with A/C shown



    Click image to see an enlarged view

    Fig. Exploded view of the radiator- 3.0L engine shown

  24.  

 
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