1. Attachments are working again! Check out this thread for more details and to report any other bugs.

strange prius noise

Discussion in 'Gen 2 Prius Main Forum' started by JCPrius, Nov 24, 2007.

  1. JCPrius

    JCPrius Junior Member

    Joined:
    Nov 24, 2007
    2
    0
    0
    07' prius, less than 1500 mile on it. I was on Interstate this morning going about 60-70 mph and when I was about to slow down to pass a toll booth, I started to hear a strange, high-pitch noise that may be coming from the front of passenger side. After passing the toll booth I heard the noise again. It was consistent and sounded as if something metal was scratching my car. I pulled over and stop the engine and started again and the noise was gone!

    any idea what this might be?
     
    #1 JCPrius, Nov 24, 2007
  2. patsparks

    patsparks An Aussie perspective

    Joined:
    Jul 12, 2007
    10,664
    567
    0
    Location:
    Adelaide South Australia
    Vehicle:
    2004 Prius
    Model:
    N/A
    Could be the brake pump. Try sitting stationary and with the HSD in ready mode press the brake pedal a few time and see if you hear it then. If that is the noise it's normal otherwise see your dealer soon.
     
    #2 patsparks, Nov 24, 2007
  3. geeky teacher

    geeky teacher New Member

    Joined:
    Jan 18, 2007
    393
    7
    0
    Location:
    West Suburban Chicago
    Vehicle:
    2007 Prius
    Normal? I'm having similar problems. -Almost 15,000miles on an '07. -Metal on metal scraping sound. Another thread led me to a Technical Service Bulletin BR001-07 regarding the Brake Actuator Assembly. While it does not affect the brake system performance it is not normal. They suggest bleeding the brake system. If that doesn't work, then the Brake Actuator Assembly must be replaced. The repair is covered by the Toyota Comprehensive Warranty.
     
    #3 geeky teacher, Nov 24, 2007
  4. Bill Merchant

    Bill Merchant absit invidia

    Joined:
    May 3, 2005
    4,096
    81
    13
    Location:
    USA | Oregon | Portland area | 97004 |
    Vehicle:
    2007 Prius
    Also, a small stone lodged against the brake rotor can make a terrible noise! Before you go bleeding the brake system, check to make sure there are no foreign objects hitting the rotor. When the OP stopped, the pebble could have fallen out.
     
    #4 Bill Merchant, Nov 26, 2007
  5. patsparks

    patsparks An Aussie perspective

    Joined:
    Jul 12, 2007
    10,664
    567
    0
    Location:
    Adelaide South Australia
    Vehicle:
    2004 Prius
    Model:
    N/A
    Ok sorry I am unable from the description to determine how loud the noise or the exact frequency so take it to your friendly dealer.
     
    #5 patsparks, Nov 26, 2007
(You must log in or sign up to post here.)