What is sudden engine stalling while driving?

[VanReagan]

Here are possible reasons for sudden engine stalling while driving: 1. Electrical circuit failure. This may occur due to low-voltage power interruption during driving, causing stalling. In this case, focus on checking the ignition system, starter switch, and fuse box. 2. Electrical component failure. Common issues involve 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. Possible causes include a damaged fuel pump, ruptured fuel line, clogged carburetor inlet, or empty fuel tank. The car might restart but with difficulty. 4. Sensor failure. Malfunctions in the throttle position sensor, air flow sensor, intake pressure sensor, crankshaft position sensor, or camshaft position sensor can lead to stalling. 5. Other failures. Serious issues like engine timing system disorder, incorrect timing calibration, or valve collision may prevent the engine from starting, requiring roadside assistance. 6. Use of substandard fuel. Automatic transmission vehicles generally don't stall easily. When they do, the primary cause is usually low-quality (below-standard) fuel leading to engine carbon buildup and stalling.

[Janice]

I've been driving for over twenty years and have experienced several instances of sudden engine stalling while on the road. The most common causes are fuel-related issues, such as running out of gas or a faulty fuel pump, which cuts off the fuel supply and causes the engine to stop. Ignition system failures, like worn-out spark plugs or damaged ignition coils, can also prevent the engine from firing. Sometimes, errors in the electronic control unit (ECU) can trigger a stall. Once, my car stalled while I was driving on the highway, which startled me, and I had to quickly steady the steering and pull over safely. After losing power, the brakes can become stiff, so it's crucial to act promptly. Regular maintenance shouldn't be neglected—always check the fuel filter and electrical connections.