2012 ford mustang troubles?

Alright, so my mom has a 2012 ford mustang with a V-8 engine. When we're driving it randomly dies. There's no warning signs other than a quiet high pitched noise you can hear from the back seat only. When we tow it to the auto repair place they say "no codes came up when we ran the test". We've been to about 5 places-paying for every test. I'm sorry I don't know much.

The only thing that you would hear from the back seat only and would make the car die would probably be the fuel pump. Try and keep the gas tank full if you can because sometimes a fuel pump can overheat. The fuel actually cools the fuel pump. Not enough gas, not enough cooling. My guess is Mom lets its run low. Fuel filter is a possibility as well as your gas cap.

Check that your intake is tight and no letting air out