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Car making metallic noise when slowing down

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by js6425, Aug 3, 2017.

  1. js6425

    js6425 New Member

    Joined:
    Aug 3, 2017
    1
    0
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    Location:
    Milwaukee, WI
    Vehicle:
    2007 Prius
    Model:
    N/A
    Last week, I got an oil change, tire rotation, new front brake pads replaced, and a new serpentine belt put in . I've just noticed a new noise my car makes when either slowing down (braking or even coasting). Only seems to happen once I get below 5mph or so. I took an audio recording, hopefully you can hear the noise too.

    Would appreciate any expertise and insight before taking it back into the dealer! This is for a 2007 Prius.

    Thanks!
     

    Attached Files:

    • Car.zip
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    #1 js6425, Aug 3, 2017
  2. goldfinger

    goldfinger Active Member

    Joined:
    Mar 12, 2012
    535
    402
    0
    Location:
    Buffalo
    Vehicle:
    2016 Prius
    Model:
    Three
    Sounds like brakes to me. You replaced pads, probably not the rotors. Could be a warped rotor, or it could be the pads just haven't seated to the old rotors yet. Try a couple friction brakes. Get up to 35 - 40 mph, put the transmission in neutral, and brake to a stop. This eliminates regen so your car is forced to use the friction brakes. Normally these don't kick in until about 4 mph.
     
    #2 goldfinger, Aug 3, 2017
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