Why does a car suddenly stall and fail to start?
2 Answers
Reasons why a car suddenly stalls and fails to start: 1. Positive terminal of the power system short-circuited to ground; 2. Starter control circuit short-circuited; 3. Starter itself malfunctioning; 4. No control voltage on the starter signal wire; 5. Internal failure of PSF1. Replacing the starter can solve these issues. The starter converts the battery's electrical energy into mechanical energy, driving the engine flywheel to rotate and enabling the engine to start. Before the engine can run on its own power, it must rely on external force to rotate. The process of transitioning the engine from a stationary state to self-sustained operation with external assistance is called engine starting.
I've also experienced the frustration of a car suddenly stalling and refusing to start. The most common culprit is battery issues—loose connections or low voltage might cause the dashboard lights to flicker. Next, check the ignition system; worn-out spark plugs or faulty coils can prevent the engine from firing up. Fuel system problems are also frequent, such as a failed fuel pump or clogged filter, which can cut off gasoline supply. Electrical shorts or blown fuses can also paralyze the entire system. When troubleshooting myself, I first tested the battery with a multimeter to see if the voltage was below 12 volts. If that didn’t help, I inspected the spark plugs for carbon buildup. Eventually, I took it to a repair shop and found out the alternator was faulty—cost me a bit to fix. My advice: regularly maintain the battery and ignition components to avoid roadside breakdowns. If the car does stall, pull over safely, turn on the hazard lights, and avoid cranking the starter excessively to prevent draining the battery. Remember, safety comes first.
