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Hard braking and strange noise from the pedal/inside the engine bay?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by luvdaprius, May 7, 2018.

  1. luvdaprius

    luvdaprius Junior Member

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    Been enjoying my Prius issue-free for 3 years and I am starting hear this strange noise that is coming from the brake pedal or perhaps inside the engine bay.

    I definitely hear it all the time when I have to come to a stop from existing the freeway. I wouldn't say slamming on the breaks until the ABS or traction light comes on but more like 40 to 0 pretty aggressively.

    My brake pedal would travel in and then when it reaches that wall or thresh point, I would hear this "sheesh" perhaps a high-pitch clunk noise from the brake pedal. Not sure if I can accurately describe the sound. It's definitely not from the calipers, pads or rotors. I can feel that it's from the pedal.

    I will try to make a video if I can. Any help would be appreciated.
     
    #1 luvdaprius, May 7, 2018
  2. bisco

    bisco cookie crumbler

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    sounds like it might be the brake actuator, do any dash lights come?
     
    #2 bisco, May 7, 2018
  3. luvdaprius

    luvdaprius Junior Member

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    I found out that even firmly pressing down the brake pedal makes this noise sometimes. :(
     
    #3 luvdaprius, May 8, 2018
    Maarten28 likes this.
  4. xliderider

    xliderider Senior Member

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    Yep, our 2011 does it too. There was a recall on Gen 2 brake actuators, but none for the 2010+ Gen 3.

    Posted via the PriusChat mobile app.
     
    #4 xliderider, May 8, 2018
  5. luvdaprius

    luvdaprius Junior Member

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    Do you think it's okay to leave it as is then? I've been braking less aggressively lately.
     
    #5 luvdaprius, May 10, 2018
  6. bisco

    bisco cookie crumbler

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    less aggressive braking is a good thing.
     
    #6 bisco, May 10, 2018
  7. xliderider

    xliderider Senior Member

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    I suppose, as long as it's not throwing any error codes or illuminating the check engine light. Ours does it sporadically, and it is difficult to reproduce for the service manager, service technicians/mechanics.

    Posted via the PriusChat mobile app.
     
    #7 xliderider, May 10, 2018
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