I am having issues with my 05 Mitsubishi Lancer Sports braking. For low speeds the braking is absolutely fine but as soon as I go past 70 mph I start to hear a faint clicking/ rattling noise coming from the direction of the speedo cluster. After this the brakes go hard to touch and if I was to stamp on the brake it jeers ever so slightly to the left, it feels unsafe and unpredictable like this. After 30 seconds or so with hard brakes the Abs light comes on, after this the brakes feel normal and I can go past 70 mph with no hard brakes or troubles at all. I have thought about removing the Abs fuse completely as it feels safer with the ABS light on, surely there is something wrong with the car though. I have taken it to the local garage and they thought it was seized pads and old brake fluid but even though these two things are amended the problem persists. I have heard that often braking issues related to speed can be caused by a worn out alternator, could this be whats causing my problems?