I have a 2004 F150 that will not charge. I changed the alternator. The battery. Checked the fusible link. Tention pulley and power steering pump was bad. Changed them. Changed the belt. Checked a couple fuses. Checked all the grounds. I do not know what else to do. This is my only vehicle. And with two kids. Work and school myself. I can't afford not to have it running.

 

The 04 charging system is controlled by the PCM. Without the diagnostic procedure, the right equipment, and a good understanding of how it works, you'll probably just replace stuff and either get lucky or you won't.

Take it to a properly equipped shop or a dealer.