my f150 is shutting down for no reason. I took it to have codes read and came up with p0457, p0320, 755, help

 

P0447 Evaporative Emission Control System Vent Control Circuit Open
EVAP Emission Control System Leak (Fuel Cap/Loose Off)
Check your fuel cap.

P0320 Ignition/Distributor Engine Speed Input Circuit Malfunction
For us, I think it would be the crackshaft position sensor (CKP) since we don't have distributors. Assuming of course that it is a newer model F150.
<-Not a mechanic so dig deeper.

P0755 Shift Solenoid B Malfunction
<-again, not a mechanic.

Autozone can scan and print all of this out for you.