Probably the idle air control valve, or the throttle position sensor. Also check for vacuum leaks.
They start to sputter,stall and stop running.
If the oil is low in your car, it can eventually cause your car to stall and not start. It can also kill your engine.
Your question is sort of backwards, perhaps you meant what causes engine failure? Engine failure causes...the engine to fail. If someone told me their engine failed I would take it to mean that it stopped running, or wouldn't start.
when i am driving my toyato 2001 Eaco stops running, it will start back up
Possible fuel filter, fuel pump sock fuel pump, Ignition module are the tops off the top of my head.
The engine will cease running. If it is partially clogged it may be hard to start and may stall. This can also be caused by a fuel pump that is about to fail.
AC runs on the battery. If the car is off and you run the AC, then start the car, it will stall.
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it may be hard to start, stall, or stop running altogether.
The Oxygen sensor, or the IAT Sensor is telling you Ecu to shut down the car. Its running to hot. Or you have a pressure hose that has a leak or has come off.
DON'T!! Dry the engine out first. If you try and start an engine full of water you will blow it. After it is dry, start it like you normally would.
Start with replacing the fuel filter.