Question about 2001 Oldsmobile Alero

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My 99 Alero has had the left front hub assembly repalaced for the fourth time in 2 1/2 years. I had it replaced three weeks ago and it has the same problem again and needs to be replaced again. Any idea why this keeps happening could there be some other underlying cause?

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I had the same problem on an 2000 Alero. I had to replace the hub and spindle assembly plus the knuckel that it bolts on to. For some reason, the first one that was replaced was installed kinda crooked and it warped the knuckel. It seemed to fix the problem though.

Posted on Oct 01, 2008

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Is the wheel bearing failing or the wheel sensor inside? Is the vehicle totally stock or does it have aftermarket whells on it? Some aftermarket wheels have the wrong offset and put excessive strain on the hubs if you have the wrong wheels change back to the factory wheels and see if your problem goes away.

Posted on Aug 21, 2008

  • Randy Harkins
    Randy Harkins Aug 21, 2008

    Also I forgot how is the front end alignment this is another factor that can affect the life of a hub/bearing assembly. If any of the information I provided is helpful please give me a fixya! Rating and if you need any further help on this problem contact me Thank you, Randy



    www.aceautomotive1.com

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I need to know the other socket sizes the funny lookin bolts holding it all to gether not the axle nut on the front hub assembly on my 2001 dodge 1500 4x4


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Front passenger wheel is in at the top by 1/2 inch rubbing noise started when making left turns. I think wheel hub assembly is bad. Also inboard brake pad completely worn down. Can bad struts cause this?


Sounds like a bad hub/bearing, could also be a front axle issue though.

I have never heard in my almost 15 years as a mechanic of struts causing one pad to wear uneven, this more sounds like an issue of one of two things, bad caliper, or when you had your brakes replaced whoever did the job did not replace that pad.

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Had the same problem 2 weeks ago


well if the radio is locked (like says locked right on the radio) then you can take it to a dealership and have them unlock it for a small fee.... like 5$. they get a code and put it in to unlock it.

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Wheel hub assembly front 1997 sebring


  1. Raise and safely support the vehicle.
  2. Remove the front tire and wheel.
  3. Remove the steering knuckle assembly, as described previously.
  4. Remove the bolts attaching the hub/bearing assembly to the steering knuckle.
  5. Remove the hub/bearing assembly from the front of the steering knuckle. The bolt-in front wheel bearing used on the vehicle is transferable to a replacement steering knuckle, if the bearing is in serviceable condition. If the bearing will not come out of the steering knuckle, it can be tapped out using a soft-faced hammer.
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  1. Thoroughly clean all parts, including the hub/bearing assembly mounting surfaces on the steering knuckle.
  2. Install the replacement hub/bearing assembly onto the steering knuckle, aligning the bolt holes of the bearing flange to the knuckle.
  3. Install the attaching bolts and tighten evenly to make sure the bearing is square to the face of the steering knuckle. Tighten the attaching bolts to 80 ft. lbs. (110 Nm) on Cirrus, Stratus, Sebring convertible and Breeze, or 65 ft. lbs. (88 Nm) on Sebring coupe and Avenger.
  4. Install the steering knuckle assembly, as previously described.
  5. Install the tire and wheel.
  6. Lower the vehicle and check for proper operation.

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Alero loud humming/roaring sound coming from front end.


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.

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