Need some help here. I own a 2010 SHO non-pp (does have 20" pp wheels) with 50k miles on it. I have a rotational noise that is correlated to vehicle speed. Engine RPM, nor gear make any difference. Neither does hitting the brakes soft, medium, or hard. It mildly resembles a noise you would hear from a bad tire. In other words, it's frequency correlates to something round that would have to be somewhat large(er) in diameter. It resembles a bearing noise, but a half shaft or a wheel bearing, I would think, are small enough that at 65 MPH, that they would be spinning fast enough that I wouldn't be able to hear the frequency; it would just be a continuous noise. Where as tires/wheels are large enough that they will spin slow enough at 65 MPH for me to hear the frequency of the noise.
I rotated the tires with no change at all as well as verified tire pressure. It is noticeable at NEARLY all speeds. Below 15, it isn't frequent enough to hear it. Going around corners the noise itself gets louder, not more frequent. Turning to the right SEEMS to make it the loudest. If I had to try to locate the noise, I would say it is coming from the front of the car. I can BARELY feel it in the steering wheel when going around corners, and even less so going straight.
As far as the loudness of the noise? Not very. If you have the stereo on at a nice, comfortable level where you can still easily carry on a conversation, you can't hear it going in a straight line. Around a corner, you can.
Lastly, I've owned this car since it had 37k miles on it. I didn't notice it until about 2-3 months ago, which is about 2 months after I put Motorcraft front rotors and PFC pads on.
I'm sorry for the long post, but it's driving me nuts. If you have any ideas, it would be greatly appreciated.
Thanks,
Spenser
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