Need help from the FChat brain trust. My 328 wouldn't start one day, no sound from the fuel pump. I checked the fuses and the pump, but since it was original I replaced it. Turn the key and the car fires right up and I drive it around for a few days. A few days later it is parked and home and I turn the key and......same problem. It cranks, but no fuel pump noise. Recheck every connection, fuses, relay, and nothing. What do I do next?