Question about 2001 Oldsmobile Alero
I have a 2001 Alero and it makes a loud humming/roaring sound, coming from the front, it gets louder as you get going down the road. Seems everyone say to replace the hub and bearing assembly, did that still same noise. Any idea? Not tranny, coast and noise stays, replaced rotors, pads, and rotated tires
That's indicative of a wheel bearing, which is why you were told to change that out. However, it's also possible that the carrier bearings in the differential (where the drive axles attach) have gone bad. That happened to me on my 300ZX several years ago, and I had to replace the diff bearings. I would have them checked out somewhere other than a dealer (you'll probably get a better price from an independent shop).
As a sidenote, to be sure it wasn't a wheel bearing, if you hear it quiet down in a turn one way but get louder in a turn the opposite way, it's likely the wheel bearing. If you turn left at speed and it gets louder, then it's the right bearing (since you're loading up that side of the car). If it gets quieter in a right turn, it's the right side (you're unloading that side of the car and not putting as much weight on it, so it doesn't drag as badly). See if you get that symptom just to be sure that the wrong side front wheel bearing wasn't changed.
Posted on Sep 01, 2008
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Posted on Jan 02, 2017
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