What Causes a Car to Suddenly Stall While Driving Normally?
2 Answers
The reasons why a car suddenly stalls while driving normally are: 1. The car's anti-theft system is triggered, causing the engine to lock; 2. Ignition switch failure; 3. Damaged ignition module or damaged ignition reference signal line from the ignition module to the engine computer; 4. Low fuel pump pressure, fuel line leakage, small supply current, or damaged fuel pressure regulator; 5. Carbon deposits in the engine. The solutions for a car suddenly stalling while driving normally are: 1. Check if the car's anti-theft system is triggered; 2. Check the working condition of the ignition switch; 3. Check if the ignition module and signal line are faulty; 4. Check if there is fuel line leakage; 5. Clean carbon deposits in the engine; 6. Check if the battery has sufficient power.
I've experienced this situation before – the car suddenly stalled while driving, which was really startling. The cause could be an issue with the fuel system, such as a fuel pump failure or a clogged filter, leading to insufficient fuel supply. It might also be an ignition system problem, like faulty spark plugs or coils preventing the engine from starting. Electrical issues are also common; a dead battery or a failed alternator can cause an instant power loss. Additionally, sensor malfunctions, such as a faulty crankshaft position sensor, can cause the engine to mistakenly shut down. If this happens, don’t panic—turn on the hazard lights immediately, pull over, and inspect the car. Later, I had a mechanic check it out, and it turned out to be a fuel pump issue. After replacing it, the problem was fixed. Driving requires regular maintenance—inspecting these components in advance can help avoid trouble.
