03 f150 5.4 not charging

[Farley]

Truck wont charge the battery. Replaced alternator with a junk yard reconditioned. Still had problems. Put the battery from my buick in (known good battery) and it still had problems. Checked the fuses at the power dist box and all good there. Any suggestions? I read in my Haynes manual about a Mega Fuse but dont think I have one or couldnt find it, its definetly not where the book suggests. I have a fusible link instead I believe. Any suggestions before I bring it into the mechanic?

[cam7069]

Try a brand new one , stay away from remans

[Farley]

any way to test it to see if its working properly?

[Jeremy airjer W]

You could check to see of there is battery power at the large wire on the alternator. You can also check for power on the orange with light blue wire. This is fed from fuse 11 in the battery junction block.

[SkunkedAgain]

I would be thinking that one of the wires is either corroded or bad somewhere in the link

[Farley]

Thats exactly what I'm thinking, just a matter of finding it. Thanks boys.