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2010 Prius wheel bearing or worse??

Discussion in 'Gen 3 Prius Technical Discussion' started by roscorx8, May 30, 2017.

  1. roscorx8

    roscorx8 Junior Member

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    I'm at loss on trying to figure it out. I believe I 've done all wheel bearing tests that I know of to figure out left or right, front or back. I've checked it turning under load, checked to see if it was hot after driving it, spun wheel by hand. I also replaced trans fluid, I just put on brand new tires two days ago and still the interior noise is ridiculous. The waa waa waa sound especially at 30+ mph is horrible. It sounds like a old cj7 with 35 knobby tires. I have an appt. with the stealer tomorrow at 8am but just thought I'd see if anyone had any grand ideas.
     
  2. Simtronic

    Simtronic Active Member

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    I would Jack up a wheel at a time and spin by hand listening carefully to the hub then try pulling the wheel side to side and from the bottom up to see if there is any movement. Even the slightest of movement suggests a bearing needs replacing. Good luck but I am sure the dealer will be able to help diagnose the problem though you might find it cheaper to get the work done if required elsewhere.
     
  3. roscorx8

    roscorx8 Junior Member

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    Yea I will try that again, I'm honestly wondering if both front hubs are shot the way they sound. All 4 wheels I hear the brake scraping a little bit but no other noise. I can do the work myself, but just need to know what to repair. I'm not able to upload a video I took of the front wheels turning. There is some other noise in there but both front sound the exact same.
     
  4. bisco

    bisco cookie crumbler

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    how many miles on her?
     
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  5. roscorx8

    roscorx8 Junior Member

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    Good question, 153k I just bought it from a dealer last November. Didn't get a prior history on it.
     
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  6. bisco

    bisco cookie crumbler

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    plug the vin into toyota owners website, any dealer service should show up.
     
  7. ChapmanF

    ChapmanF Senior Member

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    When the left front bearing was bad on my old Gen 1, I was completely unable to catch or confirm it by any technique short of driving with a ChassisEar. Nothing I could do with the car raised or without driving forces on the bearing ever gave any indication of a problem. Thermal imaging after a drive even showed the bad bearing a tad cooler (!) than the good one on the other side, so that wasn't any help.

    The ChassisEar made an open-and-shut case in, like, 10 seconds (not counting the time to stick the mics on the four corners and start driving, of course).

    -Chap
     
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  8. roscorx8

    roscorx8 Junior Member

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    I have used toyotaowners.com not a whole lot of service records on there. I guess my main question would be if it could be anything else besides front wheel bearings? Im thinking of just replacing both front instead of paying $150 for them to tell me one or two are bad. Is that a bad idea?
     
  9. TMR-JWAP

    TMR-JWAP Senior Member

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    just like Sim said. Jack it up, grab the top and bottom of the tire and see if it wiggles. ANY motion at all = replace the hubs. I went for a ride in my sons 2005 (275k miles) last week and couldn't believe the growling noise I was hearing from the right front area. He was oblivious to it and thought it was just tire/road noise. Jacked up passenger side and it moved like crazy top and bottom. Didn't even bother testing the driverside. Ordered two Timken hub assemblies @~$110 each and they arrived in 3 days. Spend the extra few dollars and get a quality hub. I wasn't going to buy one of those $41 hubs and then do the job again next year. Just got done doing the right side this evening. This car has never been exposed to anything other than southern winters and that hub was a BEAR to get off. A slide hammer with a hub adapter attachment ended up pulling the wheel stud/hub portion out of the bearing. Then had to attach the "hub adapter" to the hub mounting flange. It took probably 2 or 3 hundred strikes to get that flange out due to the dissimilar metal corrosion between the aluminum and steel. My arms still ache (after I finally got that apart yesterday, I was so beat that I gave up for the night). This job (at least on Gen 2) CAN be done without removing the knuckle. All I had to do was remove the caliper, the disc, the speed sensor and the axle nut. The dust cover on the back can be popped off and moved as needed to allow your socket to get on the four flange mount bolts. Axle nuts are cheap, so buy new ones before you start the job. Don't risk reusing the old ones. The threads are very easy to damage when "un-staking" the nut. You may want to plan ahead and get a spindle rethreading die ahead of time. They're available online for about 15 bucks. The 2005 spindle has a M22 x 1.5 thread. If there's any doubt about the spindle threads, clean 'em up so you don't gall the nut/spindle together. Autozone has the slide hammer and the hub adapter available in their loan-a-tool program. Here's a couple photos of the old hub after it came out. Also, the test drive with the new hub was awesome. Quiet as a mouse. Will do driverside this weekend probably.
     

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  10. roscorx8

    roscorx8 Junior Member

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    Chassis ear would definitely help. I jacked it up and tried to find any play. Not the slightest could be found unfortunately. Have been debating between timken an oem if I pull the trigger on it.
     
  11. Simtronic

    Simtronic Active Member

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    I have never heard of a chassis ear just rely on head ears! I changed the rear Bearings on my old Prius with Febest I passed the old car down and it is still running 200K Miles and still quiet
     
  12. roscorx8

    roscorx8 Junior Member

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    Simtronic, at what mileage did you replace your bearings with the febest brand?
     
  13. ChapmanF

    ChapmanF Senior Member

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    I had never heard of a ChassisEar either before that time I had to get one and use one, and yes, it shocked me to learn a wheel bearing could fail in such a way that none of the techniques I had earlier relied on could prove that was what it was. But I've since seen a number of PriusChat threads from people in the same boat.

    -Chap
     
  14. Simtronic

    Simtronic Active Member

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    at around the 100,000 miles but I had an enginer plugin kit in it so around 100KGs extra load before I carried anything, the front bearings are still original
     
  15. roscorx8

    roscorx8 Junior Member

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    Well I ordered two Febest branded front wheel bearings and installed myself. Honestly wasn't hard at all. I don't know if the driver side was bad, the passenger side was. Still extremely hard to feel any bearing fault in it. I figured I start with cheap brand and see how long it lasts. IF I need to do it again, I know the procedure well and can knock it out pretty quick.
     
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