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Gen3 Prius engine noise

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Elvis Frederick, Jun 11, 2023.

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  1. Elvis Frederick

    Elvis Frederick Junior Member

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    While I was on the highway I suddenly heard a strange engine clink clink clack clack. So I pulled over and had the car towed to my home. I have since since cleaned EGR and throttle body but the sound remains. Any I deas
     
    #1 Elvis Frederick, Jun 11, 2023
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  2. JC91006

    JC91006 Senior Member

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    were you low on oil?
     
    #2 JC91006, Jun 11, 2023
  3. Mendel Leisk

    Mendel Leisk Senior Member

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    What’s the miles?
     
    #3 Mendel Leisk, Jun 12, 2023
  4. tankyuong

    tankyuong Senior Member

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    coolant level?
     
    #4 tankyuong, Jun 12, 2023
  5. bisco

    bisco cookie crumbler

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    what year?
     
    #5 bisco, Jun 12, 2023
  6. Elvis Frederick

    Elvis Frederick Junior Member

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    No, I just change my oil at Toyota. Toyota used Tech stream, but no codes showed up. According to the Toyota technicians, the clink clank suggested that something let go in the engine. Their diagnosis was rather vague. Also, I changed my head gasket in December.
     
    #6 Elvis Frederick, Jun 13, 2023
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  7. Elvis Frederick

    Elvis Frederick Junior Member

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    213000 miles, I keep up with my oil maintenance
     
    #7 Elvis Frederick, Jun 13, 2023
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  8. Elvis Frederick

    Elvis Frederick Junior Member

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    Filled, It is not losing coolant. Also, it has a new water pump. After the strange song the car lost power.
     
    #8 Elvis Frederick, Jun 13, 2023
  9. Elvis Frederick

    Elvis Frederick Junior Member

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    2010, Prius
     
    #9 Elvis Frederick, Jun 13, 2023
  10. Brucetafer

    Brucetafer Member

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    get a cheap coolant pressure / vacuum tester.. run the engine and you'll see pretty quick if theres headgasket or crack..
     
    #10 Brucetafer, Jun 13, 2023
  11. Brucetafer

    Brucetafer Member

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    also check your timing, my 2007 had a timing chain get lazy and maxed out the tensioner, sounded like all the lifters were playing a techno song
     
    #11 Brucetafer, Jun 13, 2023
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  12. Brucetafer

    Brucetafer Member

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    also, make sure your valve cover gaskets are good and the cover is clean, my shower port was clogged pretty bad at 141k miles and was not flowing sweet dinosaur juice to the cams..
     
    #12 Brucetafer, Jun 13, 2023
  13. Elvis Frederick

    Elvis Frederick Junior Member

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    The head gasket was already replaced. The timing was checked, tensioner replace.I am suspecting rod bearing or VVTI Gear. I will love to post a short video, with the sound, but since I am new, I cannot.
     
    #13 Elvis Frederick, Jun 17, 2023
    Last edited: Jun 17, 2023
  14. Mendel Leisk

    Mendel Leisk Senior Member

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    At what miles was head gasket replaced?

    At what miles was EGR and throttle body cleaned? Was that the first cleaning? Was the intake manifold (with its EGR passages) cleaned as well? How thorough was this cleaning; you did it yourself?
     
    #14 Mendel Leisk, Jun 18, 2023
  15. ukulelegeek

    ukulelegeek Active Member

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    Mine just did a clatter and shudder thing, no dashboard lights, no warning. Lost power quickly. Oil, fine, coolant, fine. No power to drive it at all. What do you think it could be?
     
    #15 ukulelegeek, Jun 20, 2023
  16. bisco

    bisco cookie crumbler

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    bad gas?
     
    #16 bisco, Jun 20, 2023
  17. ukulelegeek

    ukulelegeek Active Member

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    Nope, I wish. Coil(s) wore out. She's getting new coil(s) and spark plugs. About $740! This car is NOT cheap to drive, but it is 13 years old. I really hope I'm done with repairs for a while.
     
    #17 ukulelegeek, Jun 22, 2023
  18. bisco

    bisco cookie crumbler

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    wow, not sure i've ever heard of that before, but it makes sense i guess
     
    #18 bisco, Jun 22, 2023
  19. JC91006

    JC91006 Senior Member

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    I hope the diagnosis is correct......
     
    #19 JC91006, Jun 22, 2023
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  20. Priipriii

    Priipriii Member

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    I got 4 working coils off the junkyard for like $15 each. Where are you buying that it ended up being $740??? Thats crazy lol
     
    #20 Priipriii, Jun 22, 2023
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