2004 Expedition 5.4. Battery light came on, with the original OEM alternator, however system seemed to be charging. PEP boys said it needed an alternator, replaced alternator, light still on, battery is good, alternator is putting out between 13.8 and 14 volts under load. Voltage drops to 10.6 on while starting. Cleaned all connections, battery, fusible. No luck battery light stays on. I've seen other threads where they replaced the fusible link, but it also said it usually breaks in the open position? Any idea's... Thank you!