Thanks guys,I just drove it to Serramonte Ford and the service guy says it's totally normal.I think it was just something that went unnoticed until now. (Perfect storm brain game)

Thanks guys that's what I was looking for, several people confirming that fuel pump noise level and timing is normal.

Here's the raw video, let me know if that helps. https://www.dropbox.com/s/pj72iw3c0ovnsya/What%20is%20this%20pump%20noise%20%282013%20Mustang%20Boss%20302%29.wmvI can hear it plenty loud on my computer. You'll hear it at the following spots. We are turning the key from Off, to Accessory...

I just filled the tank up with gas, no change pump still engages in a loud way.Is it really supposed to be this loud normal? (or is it wearing out, or an electrical current/draw mismatch?

Just found this:http://www.autohub360.com/index.php/how-to-troubleshoot-a-fuel-pump-6834/ (doesn't this mean it's supposed to be quiet if working normal?)"Electric fuel pumps sometimes give you a warning that there is something wrong. A good running fuel pump is rarely heard. However, a...

Thanks are you sure sure? This is my roommates car, and I had the new backup camera installed as a gift today. He says he's never heard the sound before and is worried something is wrong.Is it because he's listening for something to be wrong since we changed something? I want to be...

Hey all,What is this pump noise? (2013 Mustang Boss 302)We had a new rear view mirror with LCD backup camera installed today and now there is a strange electric pump noise when you turn the accessory power on before you even start the car.Any suggestions what the problem noise is...