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shaking

Discussion in 'Gen 2 Prius Main Forum' started by renieville, Nov 13, 2017.

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  1. renieville

    renieville New Member

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    My daughter had to brake really quickly. After she started driving again, it started to shake. When she got home, she started it and it made this terrible noise and continued to make it until we shut it off. HELP!!!


    Thank you
     
    #1 renieville, Nov 13, 2017
  2. bisco

    bisco cookie crumbler

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    maybe a broken engine mount. how many miles on her?
     
    #2 bisco, Nov 13, 2017
  3. renieville

    renieville New Member

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    about 150,000
     
    #3 renieville, Nov 13, 2017
  4. renieville

    renieville New Member

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    she said it stop doing it a little bit when she was driving home(about a mile), though it was still rattling
     
    #4 renieville, Nov 13, 2017
  5. renieville

    renieville New Member

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    it doesn't shake/rattle as much if you give it some gas, but as soon as you take your foot off the accelerator, it does it.

    Thank you for responding. We have no idea.
     
    #5 renieville, Nov 13, 2017
  6. bisco

    bisco cookie crumbler

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    tranny could be on the way out as well. are you going to fix it yourself?
     
    #6 bisco, Nov 13, 2017
  7. renieville

    renieville New Member

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    This is my first time on any forum so excuse my naivity. If I give it gas, the shaking/rattling stops a little. She was able to drive home(about a mile). She said it doesn't do it as bad when driving.
     
    #7 renieville, Nov 13, 2017
  8. 05PreeUs

    05PreeUs Senior Member

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    Coincidence does not make causation; I don't know that the braking event and noise are related, especially if the noise is engine related.

    The braking system on a Prius is not much like a "normal" car: There is no vacuum brake booster, the brakes are applied electrically (under most conditions) and an electric pump provides the "boost" (aka power part of power brakes). Depending on the noise, it might be related to the brake booster pump or control assembly. You can check by applying the brakes with the car off, if you get the same noise, I would confidently say it is brake system related.
     
    #8 05PreeUs, Nov 13, 2017
  9. renieville

    renieville New Member

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    Have no idea how to fix it. She wouldn't be able to drive it if the transmission was messed up would she?
     
    #9 renieville, Nov 13, 2017
  10. renieville

    renieville New Member

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    #10 renieville, Nov 13, 2017
  11. renieville

    renieville New Member

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    When we hit the power button, it is quiet. When the engine starts, that is when it makes a shaking/rattling sound. That stays until you turn the car off.
     
    #11 renieville, Nov 13, 2017
  12. bisco

    bisco cookie crumbler

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    sounds like you need a dealer/hybrid expert.
     
    #12 bisco, Nov 13, 2017
    Prodigyplace likes this.
  13. 05PreeUs

    05PreeUs Senior Member

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    #13 05PreeUs, Nov 13, 2017
  14. renieville

    renieville New Member

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    This is exactly what it sounds like
     
    #14 renieville, Nov 13, 2017
  15. 05PreeUs

    05PreeUs Senior Member

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    Not the transaxle!
     
    #15 05PreeUs, Nov 13, 2017
  16. bisco

    bisco cookie crumbler

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    ooh, sounds like you're gonna throw a rod. how is the oil level?
     
    #16 bisco, Nov 13, 2017
  17. 05PreeUs

    05PreeUs Senior Member

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    That is what we call a "dead hole misfire", could be a bad coil, unplugged coil or fouled/bad sparkplug. I have even seen coil boots that were so badly degraded that the spark jumped thru them instead of going thru the sparkplug and igniting the air-fuel mix.

    Last tune-up was when, if you know and what exactly was done?
     
    #17 05PreeUs, Nov 13, 2017
  18. 05PreeUs

    05PreeUs Senior Member

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    It does not sound like part of the rotating assembly to me, nothing metallic in there making noise.
     
    #18 05PreeUs, Nov 13, 2017
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  19. bisco

    bisco cookie crumbler

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    you would know better than i.
     
    #19 bisco, Nov 13, 2017
  20. renieville

    renieville New Member

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    they replaced a coil a while back. There is more than one, correct? I know nothing about cars. I didn't think it was the transmission because she could drive it. It makes that god awful noise when she drives, but not near as bad
     
    #20 renieville, Nov 13, 2017
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