Why does the car stall automatically after starting?
2 Answers
There may be several reasons for the car stalling automatically after starting: 1. Triggering the car's anti-theft system, ignition switch failure, damaged ignition reference signal line, or excessively low fuel system pressure could all cause the car to stall after starting. 2. When driving, try to avoid operating too quickly or too frequently, as this may confuse the car's systems. This especially applies to the fuel system, ignition system, and braking system - the car's main systems. 3. During cold weather, the activity of the car's ignition system and fuel system decreases, and the electrical system may also become less responsive. Therefore, special attention should be paid to car maintenance in cold weather, using antifreeze or windshield washer fluid when necessary.
I've been driving for over a decade and have encountered multiple instances of my car starting and then automatically stalling. This is usually related to the fuel system, such as an aging fuel pump with insufficient pressure or a clogged filter, causing the engine to not get enough fuel and shut down. It could also be an issue with the ignition system, like worn-out spark plugs failing to produce sparks or a faulty ignition coil. In terms of electronic control, components like a malfunctioning air flow meter or crankshaft position sensor can cause the car to misjudge and shut off automatically. Once, during a long-distance trip, my car started normally but stalled after a few seconds. After troubleshooting, we found the fuel pump was nearly dead. Replacing it fixed everything. I recommend not waiting until the problem becomes severe—pay attention to these parts during regular maintenance. Older cars are more prone to these issues, and in winter, the fuel lines can easily freeze. When checking, first use a multimeter to test the voltage. If the simple parts seem fine, take it to a professional shop to read the fault codes with a computer—it saves time and effort. In short, prevention is better than cure. Regular maintenance and timely part replacements can prevent breakdowns on the road.
