DRIVING HOME FROM WORK 22.5 MILES I NOTICED A WHINE THAT INCREASED IN VOLUME AND PITCH DEPENDING ON ENGINE RPM. UPON ARRIVING AT HOME AND EXITING THE VEHICLE I NOTICED AN ODD ODOR THAT SMELLED LIKE SOMETHING BURNING. I OPENED THE HOOD OF THE VEHICLE AND NOTICED BLACK SMOKE COMING FROM THE VICINITY OF THE ALTERNATOR. THERE WERE NO FLAMES PRESENT AND I NOTICED DISCOLORATION ON THE ALTERNATOR. *TR