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Vibration at high speed, squealing noise at low
There's a squealing noise when I brake at a certain level while reversing. It's only when reversing and only squeals at a certain range of brake pedal pressed and at a certain (low) speed. No noise while going forward and braking. There's also a noise of some metal rubbing (circular motion, fairly certain somewhere from the wheels) which I can only hear when the windows are down and there's something on the side of the road to reflect the noise, like barricading.
Yesterday, I noticed if I am going on the highway over 100kmph, there was vibration in the vehicle in general, not specifically the steering wheel or anything and also at some point, I had to focus more to keep the car in the same lane, hard to explain. I wouldn't say that it was dragging to any particular direction but someone mentioned "it's like it has a mind of it's own" in terms of direction.
I think it could be the wheel bearing, or the other possibility from my research is the rotors. I would say that the noise was there since a few months and I did check for dust or anything visible between the brake pads and rotors but saw nothing out of place.
Any idea or anything that I can do myself to pinpoint the issue here?
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