What are the causes and solutions of black smoke from cars?

Black smoke from the car shows that the engine mixture is too thick and the combustion is not sufficient, which is the performance of engine failure. However, there are many reasons. When the air filter is too dirty, the spark plug is broken, the ignition coil is faulty, etc. Will cause the engine exhaust to emit black smoke. If the vehicle has this problem, it is recommended to go to a repair shop for maintenance and find out the reason.

Common causes of black smoke from automobile engines;

1. Because of the quality of the fuel used, it is easy to have a similar situation when using inferior gasoline. If you accidentally add inferior gasoline, there will be many impurities, and the combustion efficiency will inevitably drop greatly.

2. The air filter is blocked and the mixture is too thick, which makes the engine lack oxygen and produces insufficient combustion. This reason is also very common. You should have no problem replacing the air filter by DIY.

3. When the automobile ignition system fails, it will also cause the automobile to emit black smoke, which is probably caused by the leakage of spark plug, weak high voltage and weak flashover.

Solutions to black smoke emitted by cars;

1, clean the corresponding accessories to avoid clogging. Air filters and fuel injectors are all accessories that are frequently cleaned.

2. Always check a series of accessories, including system oil pressure, air filter, oil supply system, air intake system, air intake system and air intake pressure sensor, circuit, spark plug and ignition circuit, oxygen sensor, flowmeter and related circuits, fuel injector related circuits, pressure regulator and related circuits.

3. Repair and replace corresponding accessories, such as air filters, fuel injectors, valve seals, cylinders and pistons, oxygen sensors, etc.

4. Don't use fuel oil at will, and choose the importance of the same brand of oil. The choice of fuel model is also very important, so don't choose different models at will.

5. Driving habits are also very important. If you step on the accelerator often, the problem of black smoke from cars will be aggravated and often happen.

(Photo/Text/Photo: Chen Fang 1) @20 19