Pulsating Brake Pedal appears suddenly..

[dieseldan44]

hey friends,

i was driving the 85 today home from work and i noticed:

- light whirring sound at low speeds from right front wheel, same sound as wheel turning with slight resistance from brake pad.
- brake pedal pulsations (feels like warped rotor) on hard highway speed stops (NEVER happened before)

Discs are new within 30k.
Front calipers are new (not rebuild) ATE's 30k ago.

Tomorrow I'll take a closer look. I'll check for a sticking RF caliper and/or debris in wheel area.

Any thoughts or suggestions? Greatly appreciated. I dont see how the brakes could pulsate suddenly.

thanks as always,
dd