Guide to the Thermostat Replacement on a '02
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Thread: Guide to the Thermostat Replacement on a '02

  1. #1
    Registered User JoeOdyssey's Avatar
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    Guide to the Thermostat Replacement on a '02

    Hello again,

    I uncovered another relic from my Odyssey past and would like to share it with you folks- this article covers the basic procedure for replacing the thermostat on a '02 Odyssey:


    1) Note the radio security code and station presets.

    2) Disconnect the negative battery cable.

    3) Drain the engine coolant into a sealable container.

    4) Remove the fasteners from the thermostat housing, then remove the thermostat.


    **diagram courtesy of hondapartsnow.com

    -Installation-

    1) Install the thermostat using a new seal. If the thermostat has a small bleed hole, make sure the bleed hole is on the top.

    2) Apply an anti-seize compound to the threads of the fasteners.

    3) Reassemble in the reverse order of disassembly.

    4) Set the heater to the full hot position. Set the heater to the full hot position.

    5) Top off the cooling system and overflow reservoir with a 50/50 mixture of a recommended antifreeze and water solution. and bleed the system to remove any air pockets as necessary. Simultaneously squeeze the upper and lower radiator hoses to help push any captured air pockets out of the system.

    6) Inspect all coolant hoses and fittings to make sure they are properly installed and if previously opened, close the bleed valve.

    7) Connect the negative battery cable.

    8) Install the radiator cap loosely and start the engine. Allow the engine to run until the cooling fan has cycled two times, then turn the engine OFF and top off the cooling system as necessary.

    9) Install the radiator cap and inspect for leaks.

    10) Enter the radio security code.


    **Always install the thermostat with the small pin at the top. The rubber thermostat seal is installed around the thermostat**
    "Just because I don't care doesn't mean I don't understand. " -Homer Simpson

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  3. #2
    cnn
    cnn is offline
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    This was already discussed in detail here. Better yet, install the Motorad 180F tstat (Motorad PN 302-180), $14 at O'Reilly Auto Parts.

    Same tstat for 1999-2004 ans 2005-2010 models.


    1999-2004 model
    Factory THERMOSTAT replaced with 82 deg C Motorad Thermostat


    2005-2010 model
    FACTORY OEM THERMOSTAT changed to 82 deg C MOTORAD THERMOSTAT
    cnn: 2007 Odyssey LX

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