Q: Car turns off randomly

There are a couple of components that are the most likely cause of your stalling. The most common could be that the alternator stopped charging, or the fuel pump stopped pumping. If it is the alternator, then the vehicle may not crank over when the stall happens. If the fuel pump is bad, the engine may crank and crank, but it will not start until it cools off or sits a while. The only way to know for sure would be to have it checked. I recommend you having a mechanic, like one from YourMechanic, check your vehicle out for you and get to the bottom of your stalling issue.