Does it sound like an airplane taking off at higher speed? It's a hub. The left one if it goes away when you're turning right.
To know for sure, jack up that side and grab hold of the top and bottom of the tire. If you have any play in the wheel when you push/pull with opposite hands, that's your problem.
And all Aleros have the sealed hub assembly. I've replaced both of mine. So has my friend in her Malibu.

I had to get my hubs changed too. It's definitely the wheel bearing and it won't go away. It gets worse...at least mine did.

Prepare to dig deep into your wallet. :cry:

HAPPY HAPPY, JOY JOY!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK GOD FOR EXNTENDED WARRANTY!!!! :alcoholic:

If you can do it yourself (or have a boyfriend who's dad owns a shop) the part is only a little over $100 at Autozone or similar.
At the very least don't take it to a dealer, they'll use the GM part that costs $350.

I have a 2003 Alero and experienced humming noise while turning, especially right. I checked the bearingsa and they were fine. (I work in a detroit area tire/full service repair shop) After clearing those out of the problem, I looked into the power steering. Although I had no Power steering fluid leak, I was quite low on fluid, and it solved the problem instantly. Check up on your car more frequently then the manual suggests. It also came from the factory with the rear brakes unadjusted. I have 50000 and the rear pads had no wear.

Gm was a bit complacent with their 100,000 mile maintenance free qoute.
Trans fluid also required replacement. On the tire issue, I have the original BFG traction T/A's, and they only have 3/32nds life left on them. My shop recommends replacing when they reach 4, most tires have a 7-9 tread life.
It's also important to rotate, which would help prevent the road noise. Not roatating your fronts to rear could cause them to cup or get choppy. Putting them in the rear will wear them evenly.

Hope this helps

Oh ya, and remember to tighten your brake calipers beck nice and tight when your done, I failed to tighten mine enough and I lossed one of my caliper bolts while I was driving down the road, not pretty...lmfao!!!

thanks for your help.

I actually talked to someone else who had an alero with the same problem. He said it wasn't the hub, but was the front drivers side shock/strut. He took his to a dealer and they did nothing about it, even after hearing it they said that it's normal wear and tear. Even though his only had 20k. So it looks like I am outta luck.

you can check to see if it's the hub. Jack up your car on the side of origin, right for right wheel. Chock your back wheel (so it doesn't roll). spin your wheel slowly by hand. Grab it by the edges (180 degrees from eachother) and shake it a bit. If it doesn't feel smooth (ignore the brake hiss) It's probably your bearing.

The check engine, abs trac control lights usually come on when the wheel bearing is going bad also but not always....I got the premium hub for 160 canadian and did it myself in 1 1/2 hours hard part was loosening the axle nut, but the hydraulic jack pushing on the ratchet made short work of that...one rap on the axle and the hub slid off the spline with ease, I would suggest putting antiseize compound on the splines for easy removal next time.....as the hubs seem to be an ongoing issue with aleros.

I hate this f***ing car... it happened again last week.

I'm paying this piece off and getting something else. Defiantely not an n-body... I should have learned my lesson with the cutlass. What was I tihnking.

I hate it, I hate it, I hate it.

I should have brought something else.

Dude! I feel your pain!!!!! :cry: