inmymemory

I don't think its a wheel bearing you would hear it all the time not only when you turn. jack the car up and check your wheel well, after I lowered my car with sportlines my cold air intake was putting pressure on the wheel well and my tire would rub there when I was turning just at the right angle and speed.

when you turn (either way) both your tires move so like i said, jack it up and check your wheel well it will only take 5 mins out of your day. I hope thats it because its a easy fix just adj. your CAI

celicacobalt

my intake piping hasnt moved. i have a turbo kit and everything is exactly where its suppossed to be though. i havent lowered my car either. its starting to get louder each day though whatever it is.

Gene Culley

iTrader: (1)

Actually, when a hub starts to go it only makes noises in turns. The longer you let it go the louder it gets and then it starts to make the noise in a straight line. Then it will turn into being so loud it sounds like a bad tire.

Ackermann

I'd look for simple/cheap problems first. Hopefully it's something like the fender liner was removed while you were having work done and a couple points aren't snapped back in place.

Otherwise it's probably wheel bearings like others have said. Another possibility is a CV joint going bad, but that's typically more of a clicking noise when you're turning rather than a grinding.

rallyracer

So how hard is it to fix a hub?

how much should that cost?

What are the best parts to use and where should I buy them from?

Gene Culley

iTrader: (1)

I only believe in GM Parts since I'm a GM Parts Business. I'm sure others have their opinion. Here is what the service manual says.

Preliminary Procedure
•Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
•Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
•Remove the brake rotor assembly. Refer to Front Brake Rotor Replacement.
•Remove the wheel drive shaft assembly from the knuckle. Refer to Wheel Drive Shaft Replacement.

1
Speed Sensor Electrical Connector

2
Wheel Bearing/Hub Bolt (Qty: 3)

Notice: Refer to Fastener Notice in the Preface section.

Tighten
115 Nˇm (85 lb ft)

3
Wheel Bearing/Hub Assembly

4
Wheel Bearing/Hub Spacer

celicacobalt

good info. i guess i need to know how much it would cost to have this all replaced and why they failed and how to prevent failing. Maybe cryo treating the new parts before replacing them?

celicacobalt

Well I spent an hour under the car today to look for this problem, i have also started to hear loud rattling when driving on a bouncy road straight. I can see no suspension problems, at least nothing visiable. Everything looks ok. I had mentioned this issue to a local auto shop and they asked me if im sure its not my brakes making the noise. As far as the new rattling, i wonder if that has to do with the steering column, i heard some others complain of the same rattling.

elecblue06

iTrader: (1)

the knock/ rattling chould be intermediate steering shaft or sway bar bushings

Gene Culley

iTrader: (1)

I haven't taken a look at my 2009 control arms yet, but GM vehicles are notorious for lower control arms going bad, which causes the knocking sound.

mtbrent

Just fixed my clunk/rattle while driving under 45 over small bumps or uneven roads. End link on the opposite side of the car the clunk sounded like it was coming from. Nothing appeared wrong with it even after taking it out either, but she sure was annoying. Replaced and all is well.

If the end link is your problem, try rocking the car side to side to see if it makes the noise. I had a second hand do this while I grabbed suspension parts to try and locate the noise. Grab ahold of everything til you can isolate the knocking while the other person is rocking the car.

This is probably not even your problem for your knock, but just another idea.