Honda_Odyssey_2001-2006

Radiator

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Removal & Installation



J35a1 & J35a4 Engines
  1. Note the anti-theft code for the radio and then disconnect the negative battery cable, then disconnect the positive battery cable and remove the battery.
  2.  
  3. Drain the coolant into a sealable container by loosening the radiator drain plug.
  4.  
  5. Remove the upper radiator trim cover by carefully prying out the two piece pressed in plastic fasteners.
  6.  
  7. Remove the wire harness holder next to the stamped Y-shaped support bracket located just behind the grill.
  8.  
  9. Remove the bolts that secure the stamped Y-shaped support bracket, and remove the bracket.
  10.  
  11. Disconnect the wire harness guides from the battery tray.
  12.  
  13. Remove the ground strap and the relay box bracket from the battery tray.
  14.  
  15. Remove the battery tray mounting bolts and remove the battery tray.
  16.  
  17. Remove the wire harness holders from the upper radiator support, and detach the electrical connectors for the cooling fan motors and air conditioning compressor clutch.
  18.  
  19. Remove the upper and lower radiator hoses.
  20.  
  21. Place a separate sealable drain container under the transaxle Automatic Transmission Fluid (ATF) cooling lines, then disconnect, drain and plug the lines and radiator fittings.
  22.  
  23. Remove the upper radiator support bracket/cushion and condenser bracket assembly.
  24.  
  25. Remove the upper cooling fan shroud mounting bolts, and loosen the lower bolts for both cooling fans, and remove the fan assemblies from the battery side of the vehicle.
  26.  
  27. Disconnect the coolant overflow reservoir hose from the radiator cap fitting.
  28.  
  29. Carefully lift the radiator upward and away from the vehicle.
  30.  
  31. If the radiator is being replaced, remove the metal ATF cooler line and transfer parts as needed.
  32.  

To install:

  1. Install the radiator, cooling fans, wires, brackets and battery support in the reverse order of disassembly.
  2.  
  3. Install the positive battery cable, then connect the negative battery cable.
  4.  
  5. Set the heater to the full hot position.
  6.  
  7. Fill the cooling system with a 50/50 mixture of a suitable coolant and water and bleed the air out of the system as necessary. Alternately squeeze the upper and lower radiator hoses to help force out any trapped air pockets.
    NOTE
    When mixing a 50/50 solution of coolant and water, using distilled water instead of regular tap water may help prevent the cooling system from internal deposit build-up.

  8.  
  9. With the radiator cap partially installed, start the engine, and allow the engine to run until the cooling fan runs two times. Turn the engine off and top up the cooling system and overflow reservoir as necessary.
  10.  
  11. Close the radiator cap, restart the engine and check for leaks.
  12.  
  13. Enter the radio security code.
  14.  

J35a6 & J35a7 Engines

NOTE
Make sure to use fender covers to avoid damaging painted surfaces.

  1. Note the anti-theft code for the radio and then disconnect the negative battery cable, then disconnect the positive battery cable and remove the battery.
  2.  
  3. Drain the coolant into a sealable container by loosening the radiator drain plug.
  4.  
  5. Remove the battery.
  6.  
  7. Remove the front grill cover and the front grille.
  8.  
  9. Remove the upper radiator hose.
  10.  
  11. Remove the radiator and A/C condenser fans, as outlined in this section.
  12.  
  13. Remove the lower radiator hose and automatic transmission fluid (ATF) cooler hoses. Plug the ATF cooler hoses and lines.
  14.  
  15. Remove the radiator upper brackets/cushions (A).
  16.  
  17. Remove the engine hood latch (B).

    Click image to see an enlarged view

    Fig. Remove the upper brackets/cushions (A) and engine hood latch (B)

  18.  
  19. Pull up the radiator assembly, then remove the lower cushions.
  20.  

To install:

  1. Install the radiator and fans in the reverse order of removal.
  2.  
  3. Set the upper and lower cushions securely.
  4.  
  5. Fill the radiator with engine coolant and bleed the air from the system.
  6.  
  7. Adjust the engine hood latch:
    1. Loosen each bolt slightly.
    2.  
    3. Adjust the hood (A) alignment in this sequence:
    4.  
    5. Adjust the hood right and left, as well as forward and rearward, by using the elongated holes on the hood hinges (B).
    6.  
    7. Turn the hood edge cushions (C), as necessary, to make the hood fit flush with the body at the front and side edges.
    8.  
    9. Adjust the hood latch (D) to obtain the proper height at the forward edge, and move the hood latch right or left until the striker (E) is centered in the hood latch.
    10.  
    11. Tighten each bolt securely.
    12.  
    13. Check that the hood opens properly and locks securely.
    14.  
    15. For some models, check that the security system operates properly with the hood opened and closed.
    16.  
    17. Apply touch-up paint to the hinge mounting bolts and around the hinges.

      Click image to see an enlarged view

      Fig. Adjusting the hood latch

    18.  
    19. Apply multipurpose grease to the hood latch (A) and hood hinge (B) as indicated by the arrows.

      Click image to see an enlarged view

      Fig. Apply multipurpose grease to the hood latch (A) and hood hinge (B) as indicated by the arrows

    20.  

  8.  
  9. Install the battery. Clean the battery posts and cable terminals with sandpaper, then assemble them and apply grease to prevent corrosion.
  10.  
  11. Enter the anti-theft codes for the radio and the navigation system, then enter the radio presets.
  12.  
  13. Set the clock.
  14.  

 
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