2010 Prius Overheating after new engine install

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Maple50175, Aug 29, 2021.

  1. Maple50175

    Maple50175 New Member

    Joined:
    Jul 25, 2021
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    Location:
    MA
    Vehicle:
    2010 Prius
    Model:
    LE
    I put in coolant. Had the car in maintenance mode waited for the fan to come on. Made sure coolant was filled, maybe 20m of waiting. Put the cap on drove like 500 feet and hot temp gauge on and flashing. Turned around and noticed all the lines are hot and making bubbling noises except the bottom radiator hose which was cold.
    Also had NO heat.

    Is this a sign the thermostat went bad? Massive air in system? How do i get the air out? Ive wasted 3 gallons of coolant as it keeps just overflowing out once hot and the cover is back on.
     
  2. Maple50175

    Maple50175 New Member

    Joined:
    Jul 25, 2021
    6
    1
    0
    Location:
    MA
    Vehicle:
    2010 Prius
    Model:
    LE
  3. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
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    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    Are you following the repair manual (more info)?
     
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