New alternator, battery, and FICM. Still no start.

[jclayto4]

I took my truck to the dealership to get a diagnostic and they told me the alternator fried the FICM cause it was sending the such a low voltage and it also killed the battery. I replaced all the parts and she cranked right up. I came back to start it in the morning and i turned the key and I had no power. Any suggestions to the source of my problem?

[twoicebergs]

Something is draining it. It could be anything. Start by doing a battery drain test.

You could have a bad engine ground. Front right of engine.

Alternator to battery wire is corroded or loose.

[jclayto4]

I already replaced the battery power cable so I assumed the ground power was bad.