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changing engine thermostat 2007

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Flapper314, Jan 27, 2014.

  1. Flapper314

    Flapper314 New Member

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    Hello,

    Was wondering if any one has ever changed a thermostat on a 2007 prius?

    I have a mechanic friend of mine that is going to help me change mine. Just had a few questions
    before doing it.
    Where is it located? Is at the bottom of the engine block ? ( been a long time since I have done one since my 1983 oldsmobile and that one was on top and nothing was on the way !).

    I did some research about bleeding the cooling system after changing it to get all the air out of cooling system. There is a hex bolt on top of radiator.

    Any insight is greatly appreciated !
     
    #1 Flapper314, Jan 27, 2014
  2. Paradox

    Paradox Prius Enthusiast / Moderator
    Staff Member

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    Moved out of the Prius v maint. forum to the Gen II maint. forum
     
    #2 Paradox, Jan 27, 2014
  3. Britprius

    Britprius Senior Member

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    Welcome to PC.
    If you are going to replace the thermostat I would also replace the coolant pump and belt while you have the coolant drained. Instructions in the link below.
    How to replace engine coolant pump and thermostat | PriusChat

    John (Britprius)

    It would be helpful if you put your location in your avatar as this helps us help you.
    I assume your in the US in which case the pump is available aftermarket for around $40, and the belt $10. Only use Toyota SLLC coolant when re filling the radiator,

    John (Britprius)
     
    #3 Britprius, Jan 27, 2014
  4. K8A

    K8A New Member

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    I know this post is old, but I made a video showing how to change the thermostat. Hopefully it's gonna help a few people.
     
    #4 K8A, Nov 22, 2018
    Raytheeagle and bisco like this.
  5. bisco

    bisco cookie crumbler

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    always helpful, thank you!(y)
     
    #5 bisco, Nov 22, 2018
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