1. gas and electric works

    gas and electric works Junior Member

    Joined:
    Dec 2, 2012
    5
    1
    0
    Vehicle:
    2010 Prius
    Model:
    Five
    Hi All,

    I have a 2010 model 5 and am experiencing a woo, woo, woo, woo type sound. I thought it was from the rear but after jacking up and turning each rear wheel, all I hear is the slight drag from the pads on the disc. The car has 61K on it and from previous posts that seems to be about the mileage range for one. It is most noticeable above 25 to 45 mph. Has anyone experienced a bad front bearing with this sound? The car is covered under the platinum warranty so cost is not a problem, just getting it diagnosed is helpful.
     
  2. css28

    css28 Senior Member

    Joined:
    Feb 27, 2012
    1,566
    438
    3
    Location:
    Suburban Detroit
    Vehicle:
    2011 Prius
    Model:
    Three
    Maybe enlist the help of a passenger for another perspective as you drive.

    Does it change as you turn (left turn vs. right turn)?
     
  3. gas and electric works

    gas and electric works Junior Member

    Joined:
    Dec 2, 2012
    5
    1
    0
    Vehicle:
    2010 Prius
    Model:
    Five
    Thanks, I'll go try turning left and right to see if there is a change, I'm also trying to rule out cupping in a tire.
     
  4. gas and electric works

    gas and electric works Junior Member

    Joined:
    Dec 2, 2012
    5
    1
    0
    Vehicle:
    2010 Prius
    Model:
    Five
    Just to report there is no change turning left or right. The noise seems to be coming from the left rear but I'll have my wife drive while I listen when she gets home. I think that would also rule out cupped tire as this tire has always been on the left rear an show no noticeable wear.
     
  5. css28

    css28 Senior Member

    Joined:
    Feb 27, 2012
    1,566
    438
    3
    Location:
    Suburban Detroit
    Vehicle:
    2011 Prius
    Model:
    Three
    Tire noise can sound very much like bearing noise.

    In any event if it is bearing noise it can likely be driven more miles until it gets so loud that it's easier to find.
     
  6. css28

    css28 Senior Member

    Joined:
    Feb 27, 2012
    1,566
    438
    3
    Location:
    Suburban Detroit
    Vehicle:
    2011 Prius
    Model:
    Three
    In my mind that makes it less likely to be a bearing on any corner of the car.

    As I just said, drive it for a few weeks and see if it gets worse. The louder it is the easier it will be to find.
     
  7. ILuvMyPriusToo

    ILuvMyPriusToo Senior Member

    Joined:
    Dec 4, 2014
    778
    511
    0
    Location:
    Outside Philly, PA
    Vehicle:
    2009 Prius
    Model:
    II
    Rotate your tires. If the noise changes, then it is a tire. I've had both a bad bearing and a bad tire (at different times!)

    If you have a stethoscope, you can also listen the hub when you turn the tire. Good luck!
     
  8. tedjohnson

    tedjohnson Member

    Joined:
    May 21, 2010
    344
    64
    0
    Location:
    Greenfield MA
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    My 2010 with 100K mi does that as well , but only on a left turn. Bearings are fine , tires are fine, was told by Toyota mechanic that it was rust on a rotor hitting the pad. Its been 5,000 miles now and its still the same - no worse. Ted
     
  9. CR94

    CR94 Senior Member

    Joined:
    Dec 2, 2014
    1,752
    680
    0
    Location:
    Northwestern S.C.
    Vehicle:
    2011 Prius
    Model:
    Two
    In my experience (on a different front-drive car), leaving a tire too long in a rear position sometimes causes the kind of irregular wear that sounds much like a sick bearing.
     
  10. gas and electric works

    gas and electric works Junior Member

    Joined:
    Dec 2, 2012
    5
    1
    0
    Vehicle:
    2010 Prius
    Model:
    Five
    Just got back from sitting in the back seat. Seems more like the left rear. no change on turning or braking. I put the spare tire on the left rear and the sound did not change one iota. With the wheel off and turning the hub I get a mild clicking sound when turning it. I also get a rotational drag from the brake. Can brake drag cause this noise? The rotor is not warped at all. I pushed the caliper around and the hub turns more freely. I may try to lube the slide pins in the possibility that the caliper is holding the pads to the rotor. I also noticed that there seems to be a lot of brake dust on the rear wheels. HMMMM? Being a prius only uses its brakes a low speed when the sound isn't present could it be the brakes?
     
  11. css28

    css28 Senior Member

    Joined:
    Feb 27, 2012
    1,566
    438
    3
    Location:
    Suburban Detroit
    Vehicle:
    2011 Prius
    Model:
    Three
    I don't think the brakes will make a sound like that.
     
  12. Joe 26

    Joe 26 Member

    Joined:
    Feb 20, 2008
    242
    42
    0
    Location:
    Columbus, Ohio
    Vehicle:
    2010 Prius
    Model:
    III
    Sounds like a bad LR wheel bearing. I needed both rear wheel bearings replaced on my 2010 at 95k. I agree with the above suggestion to rotate the tires and see if the noise changes. Tires with cupped wear from worn struts can sound similar.
     
  13. fopoku2k2

    fopoku2k2 Member

    Joined:
    Jul 20, 2015
    292
    58
    1
    Location:
    Columbus - Ohio
    Vehicle:
    2010 Prius
    Model:
    II
    anyone knows where I can get the part number for a 2010 toyota prius front wheel bearing??
     
  14. sprout65@gmail.com

    [email protected] Junior Member

    Joined:
    May 29, 2011
    1
    0
    0
    Location:
    davenport
    Vehicle:
    2005 Prius
    Model:
    N/A
    So how much is it to replace R/F wheel bearing?


    iPhone ?
     
  15. boidies

    boidies Junior Member

    Joined:
    Mar 31, 2011
    9
    3
    0
    Location:
    Twin Cities
    Vehicle:
    2011 Prius
    Model:
    Two
    I just got done having both front wheel bearing replaced on my 2013. The aftermarket parts ran about $85 a wheel. If you can find a mechanic who knows his stuff, you can replace them on the car.
     
Loading...