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2005 Prius, chirping when accelerating

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by rogerSC, Jun 3, 2017.

  1. rogerSC

    rogerSC Member

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    Just started hearing a chirping noise...seems to be when I accelerate. Oil level looks okay. Any ideas what could be causing this? Doesn't sound like a loose belt to me, but this is the first mechanical glitch in the 12 years that I've owned this great car.

    Thanks!
     
    #1 rogerSC, Jun 3, 2017
  2. Moving Right Along

    Moving Right Along Senior Member

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    If you're hearing it only when you accelerate from a stop, it could be brakes or tires causing the sound.
     
    #2 Moving Right Along, Jun 3, 2017
  3. rogerSC

    rogerSC Member

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    Not just when accelerating from a stop. Just got a couple of new tires about a month ago. Part of what they did was to rotate the tires. They were fine after that...looked at the tires last night, and they look fine at this point. Could be brakes, except I'm not applying them when the noise is being made.
     
    #3 rogerSC, Jun 3, 2017
  4. JC91006

    JC91006 Senior Member

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    Maybe your brake pads are low? Or the caliper glide pins are sticking and needs lubrication.
     
    #4 JC91006, Jun 3, 2017
  5. Jmack111

    Jmack111 Member

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    Only when engine on then? If you tried putting the car in expection mode or the engines only on not the hybrid system

    Posted via the PriusChat mobile app.
     
    #5 Jmack111, Jun 3, 2017
  6. Jmack111

    Jmack111 Member

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    #6 Jmack111, Jun 3, 2017
  7. rogerSC

    rogerSC Member

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    Could be...don't know what the symptoms of those are?
     
    #7 rogerSC, Jun 3, 2017
  8. rogerSC

    rogerSC Member

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    Yes, only when the car is moving, as far as I can tell. When I'm accelerating...doesn't seem to do it when I'm coasting.
     
    #8 rogerSC, Jun 3, 2017
  9. rogerSC

    rogerSC Member

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    #9 rogerSC, Jun 3, 2017
  10. rogerSC

    rogerSC Member

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    OMG, just took my car for a quick spin. I'm sorry, I hear the sound when I'm not accelerating, and don't have my foot on the brake...when the car is slowing down unpowered. Not sure how I got that backwards, makes me sound pretty flaky, doesn't it?

    Anyways, I've got it right now, the sound that s loudest when it is slowing down without braking.
     
    #10 rogerSC, Jun 4, 2017
  11. Jmack111

    Jmack111 Member

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    It will tell you if it a engine problem or rolling (bearing) / brakes / A/C or vent lever motor

    Posted via the PriusChat mobile app.
     
    #11 Jmack111, Jun 4, 2017
  12. Jmack111

    Jmack111 Member

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    #12 Jmack111, Jun 4, 2017
  13. andrewclaus

    andrewclaus Active Member

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    Next time you drive, see if using "B" mode makes a difference in volume or frequency.

    Does the noise seem to come from engine or chassis, can you tell?

    Has the transaxle fluid ever been checked or changed?

    How many miles on the car?
     
    #13 andrewclaus, Jun 4, 2017
  14. 'LectroFuel

    'LectroFuel Senior Member

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    I might have been experiencing the same thing you have. I hadn't heard the sound until a couple years ago when I started accelerating. It's not loud and is barely noticeable, so I haven't worried about it. I mainly happens when I accelerate harder than normal and quickly. It happens when the engine delays in starting up after the electric motors initially propel the car.
     
    #14 'LectroFuel, Jun 6, 2017
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