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

Noise from belt tensioner bearing?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by alexmol, May 13, 2011.

  1. alexmol

    alexmol Junior Member

    Joined:
    Feb 24, 2011
    21
    22
    0
    Location:
    Portugal
    Vehicle:
    2005 Prius
    Model:
    N/A
    Hi!
    During the 120000km (75000mi) service my Toyota local service said I have a noisy Prius and that the sound is from the belt tensioner bearing.

    As I bought it used and allways heard the same sound I'de like the opinion from other 2G owners.

    I've made a video.



    Do you find it different from regular ICE sound?
     
    #1 alexmol, May 13, 2011
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

    Joined:
    Mar 8, 2008
    18,200
    6,482
    0
    Location:
    Green Valley, AZ
    Vehicle:
    2015 Prius
    Model:
    Two
    Yes, it sounds like your car has a bad bearing. If you plan to DIY you could remove the serpentine drive belt and rotate the tensioner pulley by hand to see if you feel roughness in the pulley bearing.
     
    #2 Patrick Wong, May 13, 2011
    1 person likes this.
  3. edthefox5

    edthefox5 Senior Member

    Joined:
    Jul 25, 2007
    10,096
    4,817
    0
    Location:
    Clearwater, Florida
    Vehicle:
    2007 Prius
    Model:
    Two
    yes thats pretty loud.

    While the belt is off turn the ICE water pump pulley too to see how thats doing.
    I would change the belt also if any repairs done.

    Serp belt tensioner bearing failure is very common.
     
    #3 edthefox5, May 13, 2011
    1 person likes this.
  4. dogfriend

    dogfriend Human - Animal Hybrid

    Joined:
    Feb 26, 2007
    7,512
    1,188
    0
    Location:
    Carmichael, CA
    Vehicle:
    2007 Prius
    Mine doesn't sound like that. I would stick a auto stethoscope on it to see if the noise is coming from the tensioner or something else.
     
    #4 dogfriend, May 13, 2011
    1 person likes this.
  5. alexmol

    alexmol Junior Member

    Joined:
    Feb 24, 2011
    21
    22
    0
    Location:
    Portugal
    Vehicle:
    2005 Prius
    Model:
    N/A
    Thanks for all the answers. I'll order the bearing and the replacement to Toyota, my DIY skills are more for the electric parts and software.
     
    #5 alexmol, May 14, 2011
(You must log in or sign up to post here.)