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Is occasional sloshing sound normal when heat is on?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by HogMedia, Oct 20, 2022.

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  1. HogMedia

    HogMedia Junior Member

    Joined:
    Jun 14, 2022
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    Vehicle:
    2020 Prius Prime
    Model:
    Plug-in Advanced
    I noticed when I turned the heat on my 2013 Prius so I could sleep in it that there is this occasional sloshing liquidy sound coming from seemingly around the dash. Is this something I should be worried about?
     
    #1 HogMedia, Oct 20, 2022
  2. ChapmanF

    ChapmanF Senior Member

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    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    There could be some air in the cooling system. What level do you see in the engine coolant reservoir? Has the coolant ever been changed?
     
    #2 ChapmanF, Oct 20, 2022
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