The brakes in my SUV pulsate as if they're warped or have high spots on them when I brake. It's not isolated to one wheel, but I think it's coming from the rear since the steering wheel doesn't vibrate or shimmy when it happens. It's very mild when the wheels are cold, but gets more noticeable when they're warm. It's also more noticeable when driving at higher speeds and/or heavy braking. I've taken it to the dealership and to Firestone and they can't find anything wrong with the brakes. I'm thinking it's the rotors, but I'm not sure. The actual braking of the truck doesn't seem to be affected, but it is annoying. Any thoughts?
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