In daily maintenance work, we often encounter such breakdowns. The engine continues to run even in the presence of oil and fire, but it stalls immediately after starting and cannot continue to run. At present, I have compiled several causes of malfunction and summarized them for my friends to refer to at work. Then the automotive editor patiently presented the reason why the car stalled when starting.
Various reasons why the car stalls
1. Trigger the car's anti-theft system and lock the engine so that the engine can start, but cannot run. If you lift the key, it will turn off once or twice and the anti-theft light will come on.
Note: This situation is mainly caused by the partner privately assigning a key without a chip in order to avoid losing the key, or the key falling, which weakens the signL. and the system cannot recognize it. It is also because there is no damage of matching and wiring after replacing the engine computer or anti-theft system components.
2. The fuel system pressure is too low, such as low oil pump pressure, oil leakage in the pipeline, low current. power supply, damaged oil pressure regulator, etc.
Note: When the fuel system pressure is too low, too little gasoline is injected during the normal injection time and the developed and modified mixture cannot be compressed and inflamed. However, at start-up, the fuel injection time corrected by the start-up procedure is greatly extended. Although the pressure in the fuel system is too low, the injected gasoline may be compressed and ignited, and the engine may start. After starting, it will stop oncee normal fuel injection will be diverted. Also, the oil pump does not pump oil, which is also a phenomenon during the first dozen starts - it can be started, but it will stop immediately after starting.
3. When the ignition switch fails, the live wire is energized at the starting point. If you lift the key, the power is cut and the ignition turns off.
Note: Most of these situations are caused by poor contact within the ignition switch. Most of them are accompanied by phenomena such as battery light on dashboard, engine oil light. , and the engine fault light does not come on. Some of them present intermittent malfunctions such as the air conditioning and heating adjustment, headlight malfunctions or even electric door and window malfunctions.
The process of solving the sudden engine stall problem;
1. After stopping.
2. Check the engine: whether the battery is working normally, whether the water tank is normal, whether the oil circuit is normal, whether the engine belt is not will not lift or break. , if there is noise inside the engine, etc.
3. If there is a problem with the battery, a slower, quieter sound than the normal startup sound may be heard when turning on.
4. If there is a problem with the water tank, the engine water temperature will be very high and it may not there is no water in the water tank. Do not open the water tank randomly. Sometimes the water temperature in the water tank is relatively high and vaporizes and expands.
5. If it comes to the oil circuit, the engine has obvious setbacks.
6. If there is a probleme with the belt, if the generator belt is lifted, the power supply will be insufficient. If the belt is broken or lost, you can only wait for help.
7. Remember not to start scrolling easily.