2019 Prius LE - Needs Engine Replaced

Discussion in 'Gen 4 Prius Main Forum' started by Willl, Feb 12, 2021.

  1. Willl

    Willl Junior Member

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    Need to replace the engine in a 2019 Prius LE. 190k miles Blown head gasket, coolant in cylinders 1 and 2, rough start on engine, blowing white smoke, and starts overheating after about 10-15 min driving.

    Are all Gen4 engines the same?

    Can I just replace with any used 2016+ engine?

    Do I need to find a "Prius or hybrid specific" mechanic to do the install, or can just any competent mechanic that can swap a regular gas engine do the job?
     
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  2. Mendel Leisk

    Mendel Leisk Underfoot

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    Maybe too many threads going??
     
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  3. mjoo

    mjoo Senior Member

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    Yes

    Yes and the hybrid Corolla engine

    Any competent engine mech that can also pull the battery disconnect switch and check codes.


    You may want to clean the EGR

    moto g power ?
     
    #3 mjoo, Feb 12, 2021
    Last edited: Feb 12, 2021
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  4. alanclarkeau

    alanclarkeau Senior Member

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    No!!! - the HYBRID COROLLA, until recently, only had a GEN 3 PRIUS engine.
     
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  5. Willl

    Willl Junior Member

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    So I can replace with any 2016+ Prius engine...

    What years are compatible for the hybrid Corolla engine?
     
  6. Willl

    Willl Junior Member

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    I apologize. I will go back and delete any other ones
     
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  7. alanclarkeau

    alanclarkeau Senior Member

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    You'll have to check the local market. I know when I test drove my Gen 4 in June 2016, the Corolla Hybrid was only new here - with a Gen 3 Hybrid engine. I think early 2019 we got the upgraded version.

    Do you have a Hybrid specialist in your area - I hear there are a few in USA.
     
  8. ozmatt

    ozmatt Active Member

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    That's an impressive amount of miles for a 2019 what do you use it for?

    Why not just get the head gasket done, egr clean and install a catch can

    Posted via the PriusChat mobile app.
     
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  9. David9962000

    David9962000 Member

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  10. mjoo

    mjoo Senior Member

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    Check his profile. He's in Orlando Florida - other side of the world. Different market.

    Toyota introduced the hybrid Corolla as a 2021 model year in US
     
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  11. Willl

    Willl Junior Member

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    I tried to request for my other threads to be deleted, but the mods rejected my requests on both previous threads unfortunately... Is there no way for me to delete on my own?
     
  12. Willl

    Willl Junior Member

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    I purchased from auction "as-is" and unfortunately had already titled into my name before the check engine light and temp sensor came on several days later. Now I'm stuck and need to figure out the best solution fast. I have no idea how long the car was driven while overheating and whether the head is warped.

    I've heard that even if the head gasket is able to be repaired, something can potentially fail again as the engine is over 190k...

    Is there a substantial price difference between swapping with a lower mileage used engine vs repairing the head gasket?

    I'm located in Orlando, FL
     
  13. ozmatt

    ozmatt Active Member

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    Not sure about price difference, for me its easier to do a head gasket than a full engine swap (if rods are not bent which hopefully they wont be!)

    I believe its normally rods that bend on these motors, not the head its self... i could be wrong!

    for me, If the rods are good i would definitely just go ahead and do the gasket on the original motor, obviously not everyone will agree that's just what i would do! then clean the egr and ad a $20 oil catch can while your there to prevent future egr problems which lead to blown head gaskets

    I still struggle to fathom how the thing ended up with that many miles already

    Good luck with it, cheers ..
     
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  14. alanclarkeau

    alanclarkeau Senior Member

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    Did you work out if there is a Hybrid specialist in your area - from reading the forum for 5½ yrs, there seem to be some very good specialists in USA - could be worth having a chat with one.
     
  15. mjoo

    mjoo Senior Member

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    #15 mjoo, Feb 14, 2021
    Last edited: Feb 14, 2021
  16. Elektroingenieur

    Elektroingenieur Senior Member

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    No. The Electronic Parts Catalog lists a different part number (19000-37850) for model years 2019 and later.
    An engine from an older fourth-generation (2016–2018) model might work in practice; I haven’t tried it. Since these aren’t identical to the later (2019–) design, however, installing one would violate federal law, unless you repeat the certification testing that Toyota did: see the EPA Tampering Policy (PDF), page 7, Basis A, note v.
     
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  17. Mendel Leisk

    Mendel Leisk Underfoot

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    And transplanting a 4th gen engine (any vintage) into a 3rd gen Prius (or Prius v) is completely beyond the pale? (Rhetorical question ;))
     
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  18. Elektroingenieur

    Elektroingenieur Senior Member

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    Unfortunately, yes: the regulations require a combination of engine, ECM, transaxle, and chassis that has been previously certified. (See my previous posting.)
     
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  19. amos

    amos Active Member

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    Did you already clean the egr cooler and valve? Was it a difficult task xompare to the gen 3? I have over 140k on 2016. No issues at all so far
     
  20. alanclarkeau

    alanclarkeau Senior Member

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    There was a previous thread - the engine is dead - he said "Blown head gasket, coolant in cylinders 1 and 2".
     
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