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Anybody know what's causing this sound?

Discussion in 'Gen 2 Prius Main Forum' started by robert Kwasny, Oct 23, 2023.

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  1. bisco

    bisco cookie crumbler

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    maybe a recording under the hood is appropriate as someone else opens the driver door.

    the actuator is ahead of the driver, near the bulkhead. there should be a good buzzing
     
    #21 bisco, Oct 24, 2023
  2. bisco

    bisco cookie crumbler

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    since you're getting an intermittent abs warning, it might be worth scanning for codes
     
    #22 bisco, Oct 24, 2023
  3. robert Kwasny

    robert Kwasny Junior Member

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    The video was recorded with the motor off not in ready mode with my friend sitting in the driver seat. Taking the car in for a scan tomorrow I'll let you all know what the results were
     
    #23 robert Kwasny, Oct 24, 2023
    bisco likes this.
  4. bisco

    bisco cookie crumbler

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    all the best!
     
    #24 bisco, Oct 24, 2023
  5. robert Kwasny

    robert Kwasny Junior Member

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    Here's the bad news wondering if I should try to flush the fluid first before replacing the pump.
    car estimate.jpg
     
    #25 robert Kwasny, Oct 25, 2023
  6. rjparker

    rjparker Tu Humilde Sirviente

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    A flush may clear it up for a day or two but otherwise is a waste of money and effort that will be repeated later.

    You should take it to Hybrid Pit for a second opinion and likely a better price.
     
    #26 rjparker, Oct 25, 2023
  7. robert Kwasny

    robert Kwasny Junior Member

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    Well it's been 8 months since my first post. I flush the brake fluid and the ticking noise stopped for a while but then came back.
    I can hear the pump motor while the clicking noise is happening. The Toyota repair shop stated the clicking noise was from the Hybrid battery ABS relay. I have a used pump coming from eBay but before I install it I'd like to know what that clicking noise is. As far as I know there is no ABS relay in the HV battery pack. Had that out twice already in the last 4 years for reconditioning. Ticking noise is coming from under the car at a block where the brake lines meet on the passenger side. With this new information I hope somebody can help me understand what's happening. Thanks in advance.
     
    #27 robert Kwasny, Jun 14, 2024
  8. rjparker

    rjparker Tu Humilde Sirviente

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    The new information about the brake line “block” location tends to confirm this.

    Further confirms brake booster/actuator.

    Fix the brake booster.
     
    #28 rjparker, Jun 14, 2024
    Last edited: Jun 14, 2024
  9. robert Kwasny

    robert Kwasny Junior Member

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    Just what I needed to know thank you.
     
    #29 robert Kwasny, Jun 14, 2024
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