OK so I'm driving a 2000 Toyota Camry. For the last few months it's been making a noise, kind of like a knocking/helicopter type noise, increasing with speed, and it's coming from the passenger side. Not sure if it's the front or the back. The Walmart tire guy said I needed an alignment in front.
At moderate speeds (30-40 mph), you can still hear it, barely. At highway speeds, it's really noticeable. It's really loud around 60 MPH with some mild vibration felt on the dash and in the seat, but interestingly enough, it's less noticeable at 70 MPH. Going around curves, it gets louder/more intense with curves to the left, and gets softer (or goes away) with curves to the right.
So, I posted this on Facebook, and a couple of people replied thinking it's a wheel bearing, most notably the front right. So, I jacked the car up and tried wiggling all 4 tires (like it says to do to check for this), but none of the tires wiggle.
To save money at the shop, what I want to do is buy the bearing or hub assembly if needed, and take it to the shop to have them put it on. Before I buy a part I don't need, I want to be sure. Does this sound like a wheel bearing issue?
Edit: I don't hear any humming, and the noise/vibration is unaffected by braking.