Proper Valve Stem Sealing Best Practices - stem seal
Sealing facetypes
I jacked up the car a few inches with the car off and in park and on each rear tire there was no play when I tried to tug on the wheel, in neither the 3-9 or 6-12 positions. I also spun the wheels around and heard a slight scraping noise, as well as a little rattling in the passenger side wheel.
Here are the youtube links for the videos of me spinning the wheels. The recordings of the wheel noises while driving are audio files and I can’t upload them to Youtube at the moment.
Sealing facemeaning
External and internal face seals are used in static, oscillatory or slow rotary equipment, like a low temperature flange seal or cover applications. In a high sealing load, face seals are excellent for gas and vacuum applications. Depending on the application’s requirements, there are various seal jack materials and energizer types.
I had my wife drive around while I sat in the back seat. There is indeed a rhythmic noise coming from each wheel when it gets above 35 mph, and it gets faster along with the speed of the car. It’s not a growl but it’s definitely noticeable. From the front seats you don’t hear any noise from the front wheels, only the back wheel noises.
Sealing faceflange
Sealing facecar
@cdaquila can you remove the flags? I’m assuming @itrontz getting flagged for putting links in because he’s a new user (maybe lift the upload restrictions for him too so he can get the audio files uploaded?)
I recently had all brake pads and rotors replaced. When the mechanic took it for a test drive, he said it sounded like the bearings in both rear wheels were bad.
I think the system may have auto-flagged it because of the links and the OP being a new user. I don’t think it was user flagged
The symptoms indeed are consistent w/wheel bearing problems. There’s often no play felt, even though the bearing is bad. The other common cause for these symptoms are tire problems, as noted above. OP might want to disprove the tires as the cause first. As long as there’s nothing visibly wrong with the tires/treads, I expect replacing the wheel bearings will do the trick.
Sounds like the mechanic is right, but before I take it in for an $800 job, could it be anything else? Could the new brakes be causing any of these noises? The brakes seem to work fine. The car has 75,000 mi. on it.