I'm not sure what happen. I have a 96' 4.6 and over the last few days I've had to hold the key to the start position for a few seconds for it to start. It would sometimes take up to 30 or 50 seconds to send power to spin the starter before it would start. Now it won't do anything at all no matter how long I hold the key on. The battery is fully charged. I can hear the regs. clicking. Any ideas or has anyone heard of this problem?