What Causes a Car to Keep Stalling?
2 Answers
Car keeps stalling due to: 1. Triggered anti-theft system causing engine lock; 2. Faulty ignition switch; 3. Damaged ignition module or faulty ignition reference signal line between module and ECU; 4. Low fuel pump pressure, fuel line leakage, insufficient power supply current, or damaged fuel pressure regulator; 5. Carbon deposits in engine. Solutions: 1. Check anti-theft system activation; 2. Inspect ignition switch operation; 3. Test ignition module and signal lines; 4. Examine fuel lines for leaks; 5. Clean engine carbon deposits; 6. Verify sufficient battery charge.
My old car used to stall frequently, especially when stopping at traffic lights, which was really frustrating. The most common causes are fuel system issues, such as an aging fuel pump failing to supply fuel steadily or a clogged fuel filter, which prevents the engine from getting enough gasoline. Problems with the ignition system are also common, like worn spark plugs or faulty ignition coils, making it hard to start and leading to stalling. The air system shouldn't be overlooked either—dirty mass airflow sensors or leaks in the intake pipe can cause the engine to stall due to insufficient air intake. Faulty electronic components, such as oxygen sensors or crankshaft position sensors, can also lead to stalling if the control unit receives incorrect signals. When troubleshooting, start with the basics: listen for fuel pump sounds and check the condition of the spark plugs to prevent minor issues from becoming major safety hazards. Timely visits to the repair shop for diagnostics and spending a bit on maintenance can help prevent accidents.
