What Causes a Vehicle to Stall While Driving?

[Isaac]

Common reasons for a vehicle stalling while driving include malfunctions in the ignition system or the fuel injection system. The details are as follows: 1. Ignition System: If the ignition system fails, the spark plugs won't ignite, preventing the air-fuel mixture from being combusted, which causes the vehicle to stall. In this case, it's necessary to check whether the ignition wiring is functioning properly, whether the ignition module is working correctly, and whether the spark plugs are damaged, such as broken electrodes or cracked ceramic parts. 2. Fuel Injection System: The fuel injection system is also part of the fuel supply system. Typically, the fuel pump in the fuel tank delivers fuel through the fuel lines to the injectors, which then spray fuel. If any component in this system, such as the fuel pump, fuel lines, or injectors, is damaged, the engine won't receive the necessary fuel, leading to the vehicle stalling.