What are the reasons for a car suddenly stalling while driving?

[MacNatalie]

The reasons for a car suddenly stalling while driving are: 1. Circuit failure, which may be due to low-voltage power interruption during driving, causing the engine to stall. In this case, you should mainly check the ignition and starter switch, as well as the fuse box; 2. Electrical component failure, usually involving the ignition coil, capacitor, or electronic ignition module. The car may start initially but stall after a while, then restart and stall again; 3. Fuel system failure, such as a damaged fuel pump, ruptured fuel line, clogged carburetor fuel inlet, or an empty fuel tank. In such cases, the car may still be restarted, but with great difficulty; 4. Sensor failure, including throttle position sensor, air flow sensor, intake pressure sensor, crankshaft position sensor, or camshaft position sensor. If any of these sensors fail, it can also cause the engine to stall; 5. Other failures, such as engine timing system disorder, incorrect timing system calibration, or engine valve issues, which are more severe problems that prevent the car from starting, requiring emergency assistance.