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Gen 3 head gasket

Discussion in 'Gen 3 Prius Main Forum' started by gjkristi, Jan 18, 2022.

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  1. gjkristi

    gjkristi Junior Member

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    No antifreeze in the oil or signs of in the cap. This maybe a start of a gasket going bad. I got a scope today so on the weekend i'm going check the cylinders out. does make noise all the time.
     
    #21 gjkristi, Jan 21, 2022
  2. royrose

    royrose Senior Member

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    I got this one from Amazon, connects to your phone by wifi. Works really well:

    Screenshot 2022-01-21 100841.png
     
    #22 royrose, Jan 21, 2022
  3. gjkristi

    gjkristi Junior Member

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    Thats funny. This is the same one I purchased but mine is 3 feet. Tried at in the house and looks like it'll do the job.
     
    #23 gjkristi, Jan 21, 2022
  4. gjkristi

    gjkristi Junior Member

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    Had you had head issues yet?
     
    #24 gjkristi, Jan 21, 2022
  5. royrose

    royrose Senior Member

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    No, my 2010 Prius runs perfectly but I only have 104,000 miles on it. I actually got the endoscope to to look for mouse turds and nesting around the hybrid battery because I has evidence of mice nesting around the spare tire well. Fortunately the area around the batter was clean.
     
    #25 royrose, Jan 21, 2022
  6. gjkristi

    gjkristi Junior Member

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    Thats good news. Mice can destroy cars. I had some in our motorhome bad deal.
     
    #26 gjkristi, Jan 22, 2022
  7. gjkristi

    gjkristi Junior Member

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    Bought a scope and here are the 4 cylinders. I didn't see any moisture in the cylinders (sat over night). I haven't seen a loss in the reservoir either over a week, What do you think'?
    Bought a scope and here are the 4 cylinders. I didn't see any moisture in the cylinders (sat over night). I haven't seen a loss in the reservoir either over a week, Value your opinion, what do you think'? I see you have purchased a lot of prius. Ive have 4 myself.
     

    Attached Files:

    #27 gjkristi, Jan 22, 2022
  8. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    They look uniform as heck.
     
    #28 Mendel Leisk, Jan 23, 2022
    PriusGuy32 likes this.
  9. Brian1954

    Brian1954 Senior Member

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    In my opinion, the pistons look normal. There is no evidence of "steam cleaning" from engine coolant.

    Did you have the check engine light on?

    Did you check for any DTCs?

    Do you have TechStream?

    Posted via the PriusChat mobile app.
     
    #29 Brian1954, Jan 23, 2022
  10. gjkristi

    gjkristi Junior Member

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    Have techstream. . One day it was not started for days. Below 0 days as a high. Went to start it and came up with check hibrid and sent a check engine light stating engine did not start, but it did start with a lot of noise. Thought it was a head gasket going bad, but antifreeze has only gone down 1/2 an inch since it was new.
     
    #30 gjkristi, Jan 23, 2022
    PriusGuy32 likes this.
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