EDIT: wheel bearing theory back into play...
My managers seem to think it's a bent rim and they want me to go to a shop. SO to avoid this cost intially, I decided to get under and look for myself. The rims look fine to me.
Shortly after checking a few things, I ran across 2 things that raised an eyebrow.
1). I spun the tires, without ever applying the brake at this point, and ALL of the tires you can see the surface jump up and down ever so slightly. Does this pose a problem or is this normal? The tires are a year old give or take some months.
Here is a vid (apologies for the iPhone camera, but you can clearly see the surface of the tire as it moves up and down while its spinning): 2003 Blue GTP :: IMG_0545.mp4 video by BrandonL2000 - Photobucket
2). I applied the emergency brake, not part of my test. But to my surprise I spun the back wheels yet again after releasing the brake, and heard this noise coming from the brakes. My theory is warped rear rotors. You can hear the surface of the pads coming in contact with the rotor at a certain point in the rotation, suggesting to me that it's warped. The front wheels make a smooth sound (unlike the rear) as the pads make slight contact with the whole rotor as it spins in rotation. Could this be warped rear rotors?
So here is a vid of the sound of the pads touching the rotor, theory: warped rears: 2003 Blue GTP :: IMG_0546.mp4 video by BrandonL2000 - Photobucket
Given all this, I'm thinking either tire issue (unlikely given new-ish tires AND the fact that ALL tires do this same thing)
OR I'm thinking it's just the rear rotors warped, since I do not feel much of anything when braking at high speed, and rear brakes don't do much anyway...
OR I'm thinking a bent rim given the movement in the tires But what's the chances ALL the tires or ALL the rims have a problem?
But even if you don't know, maybe you could share if your tires do this same up and down motion ever so slightly while spinning. If it's normal I can throw out that idea.
