My baby is acting up and I have never heard this type of noise from a car before. I was wondering if there was any mechanics in the portland area that wouldnt mind looking at her and see what they think. It almost sounds like a relay that is buzzing but my tach jumps and the car surges and stalls. this all started about when our wonderful colder weather started. I have a 1979 280zx with 5spd it has 152K miles.