When your car’s engine stalls, most of your precious time and patience (and at times, even your extra hard-earned cash) is wasted. To determine the right course of action, though, it’s always good to start at the root of the problem.
Obstructed or leaking intake/fuel system – Per the basics of combustion, you cannot ignite an inflammable fuel source without oxygen—and oxygen is found in the atmosphere. Anything blocking the engine’s efforts to suck up air or fuel will cause it to stall, even during mid-drive. The solution is simple: Keep things squeaky clean at all times.
Clogged radiator – Radiators aren’t invulnerable from foreign bodies. When obstructions like dirt, bugs, and other types of debris clog the radiator’s innards, the coolant cannot continue circulating effectively. Once the airflow throughout the radiator is impaired, it can’t cool the engine as well as it should.
Faulty sensors/electrical components – If you have a newer car (say, one from 2010s and up), there’s a good chance that its engine relies heavily upon a multitude of sensors to fire itself up. Once these sensors fail, however, things get troublesome. Fortunately, whenever electrical components fail, the check engine light usually flashes to alert you to the situation.
Busted belts and hoses – Fan belts and hoses keep the engine “connected”, so to speak; thus, it’s important to periodically check if they’re all secure and in tip-top shape. For instance, belt slippages may impair water pump operation, leading to overheating.