I have a 03 ford f150 180,000 miles for about 3 months the truck has been real slow to crank, we'll the other day I was driving home an I heard a weird noise an a strong odor well I got out of the truck saw it was my alternator making noise so got back in continued home radio cut out battery light came on but I made it home...so I new my alternator was bad so I replaced it jumped my truck cause I had drained the battery well the battery wouldn't charge well I had a warranty on the battery so I just went an got a new one put it in the truck cranked right up but the battery light is still on an after bout 30 mins of driving I turned it off an tried to crank it back when I did it had a weak crank again not as bad as the beginning but still not right is there any suggestions on what to do I'm tired of using google lol thanks in advance!!!

An alternator maintains a charge, so it needs a voltage signal to work. Fuses, fusible links, connectors, yes, bad alternator or battery. All can be a cause.

But I got a new alternator an battery so your saying it could be a fuse or the connections...which fuse would it be??

Strokethis4 said:

But I got a new alternator an battery so your saying it could be a fuse or the connections...which fuse would it be??

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Even though you got another alt and battery, does not mean they are good. Look at the gauge fuse.