What Causes Engine Stalling?

[VanLeo]

The causes of engine stalling include fuel line blockage, abnormal spark plug ignition, throttle blockage, etc. Here are solutions to address stalling: 1. Use gasoline with the correct octane rating from reputable gas stations and maintain regular servicing. During normal operation, the engine first requires the fuel pump in the fuel supply system to draw fuel from the tank, which then passes through the fuel filter into the fuel distribution lines before being injected by the fuel injector to form an air-fuel mixture. 2. Replace spark plugs according to their service life. If stalling occurs even when the air-fuel mixture enters the cylinder normally, it is highly likely that the ignition system is malfunctioning. 3. Maintain regular servicing. The air supply system is equally important as the fuel supply system, and its unobstructed operation is crucial for maintaining the correct air-fuel mixture ratio.

[DeMichael]

I often encounter this issue where the engine starts and then immediately stalls. The main reasons can be attributed to several aspects. The most common one is fuel supply problems, such as an aging fuel pump with insufficient pressure failing to deliver fuel, or a clogged fuel filter hindering smooth fuel flow. There are also ignition system failures, like damaged spark plugs with insufficient spark unable to ignite the air-fuel mixture, or loose ignition coils causing poor contact. Air supply issues can also be a factor, with a dust-clogged air filter restricting the intake volume. Errors in the electronic control unit (ECU) or chaotic feedback signals from sensors often trigger stalling as well. If the vehicle has been idle for too long, rusted electrical connectors can also lead to this problem. During daily driving, if this happens, immediately pull over to avoid danger, then inspect these components to ensure stable operation. It's recommended to clean the filters every six months, replace spark plugs, and always keep some fuel in the tank. This experience is what I've accumulated from years of maintenance.

[OAlex]

Last time I drove the family car, it stalled after starting. At first, I thought it was a minor issue, but it almost left me stranded on the road. After inspection, it turned out the fuel tank was empty and the indicator light wasn't sensitive enough to alert me. The fuel pump couldn't draw any gasoline, causing the engine to stall naturally. I've also encountered situations where the spark plugs were burnt out due to severe aging, making ignition impossible. A dirty air filter can also get clogged with black smoke, blocking air intake. Other possible causes include loose battery terminals leading to unstable power supply, or minor malfunctions in the engine control module causing erroneous actions. If you encounter such situations, don't force the car to run. Stop immediately and check simple things like fuel level and battery before calling a mechanic. I've since developed a habit of replacing the air filter every 10,000 kilometers and keeping the fuel tank full for safety.

[Bo]

Engine stalling after starting is commonly caused by ignition or fuel supply issues. Worn spark plugs failing to ignite the air-fuel mixture, clogged fuel pumps with low pressure interrupting fuel delivery, or faulty air flow meters providing incorrect readings can all lead to this problem. ECU miscontrol may also disrupt normal operation. Aging wiring and corroded contacts are equally prone to causing malfunctions. Timely detection and repair can prevent major overhauls.