Need help! Gas engine overheating. Cannot resolve.

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Sergey K, Apr 1, 2019.

  1. LexCT200H

    LexCT200H New Member

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    Thanks again @rjparker !

    The video I posted originally is the video I took of my car while in maint mode. There is no note below the video saying changing water pump fixed the issue, because I have not changed it yet ... had not even thought about it until you mentioned. I recently replaced spark plug, coil on the cylinder 4 with non oem bought from Amazon. I also replaced all four fuel injectors and MAF sensor, non oem from Amazon. I just wanted to see if that'd make any difference, as previous to that I was getting P0304 and P219A.

    Amazon.com: Marsram Ignition Coil Pack UF596 and Double Iridium Spark Plug 4912 Compatible with 2009-2014 Toyota Corolla Matrix 2010-2017 Prius, 2011-2016 Lexus Scion IM XD Pontiac Vibe 1.8L L4, Sets of 4, UF619 : Automotive

    Amazon.com: MACAX Set of 4 Fuel Injectors 23250-37020 Replacement Compatible with Toyota Prius Plug-In V 2012-2017 Lexus CT200h 2011-2017 1.8L L4 - Replaces 842-12373 800-2323N 23209-39196 23209-39195 FJ1287

    Amazon.com: Mass Air Flow Meter MAF Sensor for 09-19 Toyota 4Runner Avalon Camry Corolla Highlander,10-22 Lexus CT200H ES300H GS350 IS350 NX300H RC350,11-16 Scion IQ TC XD IM,222040V010 222040T020 HS250h : Automotive
     
  2. rjparker

    rjparker Tu Humilde Sirviente

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    Ok I guess I read your post 229 differently.

    IMG_8632.jpeg
     
  3. LexCT200H

    LexCT200H New Member

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  4. Mendel Leisk

    Mendel Leisk Senior Member

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    I would have left it off after that stumble and only partial recovery. Couldn’t stand to watch further, did it survive?
     
  5. LexCT200H

    LexCT200H New Member

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    Hi @Mendel Leisk I left it running in maintenance mode for around 15 minutes and turned it off only after noticing coolant boiling in reservoir and overflowing from hole underneath cap. I had also noticed high temperature light on dashboard and prior to that I measured temperature 235+ degree F. The temperature must have climbed to 245 right before I turned it off.
     
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  6. Brian1954

    Brian1954 Senior Member

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    You need to replace the engine water pump. A OEM pump from a dealership is preferred.
     
  7. ASRDogman

    ASRDogman Senior Member

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    You might have just burned up your motor. You should NEVER have to run it in maintenance mode
    if you refill the cooling system correctly.
    Obviously, you have other issues, like blockage? Back coolant pump? Fan's not working? Bad sensor?
    Or wiring issues that are not allowing those things to operate correctly.