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At what miles did your head gasket fail and at what miles did you clean your EGR?

Discussion in 'Gen 3 Prius Main Forum' started by douglasjre, May 19, 2024.

  1. douglasjre

    douglasjre Senior Member

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    Please post brief answers like this is a poll
     
  2. PTS

    PTS Member

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    It was down to 38 mpg and the gasket blew. I had cleaned the egr cooler to Mendel’s specifications even though the Car Care Nut said it was a waste of time. The guy with the most views was right.
     
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  3. Mendel Leisk

    Mendel Leisk Senior Member

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    Maybe the mods could add this question to the initial post:

    At what miles did you clean the EGR?

    And maybe fix the thread title, “mpg” should be “miles” I think.
     
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  4. ASRDogman

    ASRDogman Senior Member

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    You waited too long to clean the cooler. The damage was already done.
     
  5. douglasjre

    douglasjre Senior Member

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    At what mileage did you clean your EGR, and at what mileage did your hg blow.....(I just reported this to mod hoping for edit)
     
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  6. PriusGuy32

    PriusGuy32 Prius Driver Extraordinaire

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    115,000 Never cleaned EGR and not planning to - will replace the water pump when I replace the spark plugs at 120k miles, going to chance it!

    2015.
     
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  7. bisco

    bisco cookie crumbler

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    good luck! at least it's a 2015
     
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  8. M1sac

    M1sac New Member

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    Do all toyota hybrids that share this engine suffer HG problems. Such as the Auris
     
  9. Danno5060

    Danno5060 Member

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    Cleaned the EGR at 110K miles. Still going and I'm not driving it all that much these days. It'll probably be quite a while before I need to do anything else with it.
     
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  10. PA Prius

    PA Prius Active Member

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    Neither.
     
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  11. douglasjre

    douglasjre Senior Member

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    Please list your current odometer reading
     
  12. Danno5060

    Danno5060 Member

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    114K miles.
     
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  13. Mendel Leisk

    Mendel Leisk Senior Member

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    EGR cleanings:

    September of 2017, at 71K kms (~44K miles)
    November of 2022, at 96K kms (~60K miles)

    Current odometer reading: 101K kms (~63K miles)
     
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  14. priusbydefault

    priusbydefault New Member

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    2012 Prius 3, currently 166k mi. Bought used with 140k mi. Wasnt aware of Prius historic issues until I started having them and did my research. Didnt realize engine was consuming oil until low oil warning light went off on a sharp turn. Started topping off about a quart every 1k mi. Had accumulator/ABS module fail. Replaced it myself. As soon as it was back on the road, blown head gasket symptoms popped up. I am currently in the process of changing out the head gasket. Lapped the valves. While I have it apart, I am doing a piston soak and installing an oil catch can. Full egr system, throttle body and intake manifold cleaning. New spark plus and coil packs.I should be done with it by the end of this week. I will post my results.
     
    #14 priusbydefault, Jun 3, 2024
    Last edited: Jun 3, 2024
  15. priusbydefault

    priusbydefault New Member

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  16. bisco

    bisco cookie crumbler

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    head gasket 87,000, never cleaned the egr