Is your car healthy?Teach you to judge the condition of the car from the exhaust gas[汽车维修知识]

Although you no longer see those "monster" cars with black smoke on the streets of Beijing now, the exhaust is stillCarAn important indicator of a car's engine, we can grasp the running quality of a car's engine through the color and state of the car's exhaust. This is very helpful in our daily maintenance of our car or when buying a used car. Below we will introduce some knowledge of checking exhaust gas for your reference.
After the vehicle is warmed up after a cold start, ifExhaust pipeWithout modification, most vehicles with normal engines will spray out some colorless water from the exhaust pipe. After a period of driving, the drainage will disappear, and the tail end of the exhaust pipe should be clean and free of carbon deposits.
If the exhaust gas discharged from the exhaust pipe after the car is warmed up is white, it means that the car's organic oil enters the combustion chamber and burns. This is a disease that eats engine oil and must be sent back to the repair shop for repair. This kind of problem will not only occur on the old car body, if the new car is added too much oil, exceeding the upper limit, it will also cause too much oil to enter the combustion chamber to burn and produce white exhaust gas. It must be noted that if the exhaust pipe emits white smoke when it is just on the road in cold weather, it may be the result of condensation of water vapor, which cannot be mistaken. However, it is abnormal that the exhaust pipe still emits white smoke after a hot car.
If the exhaust gas emitted is black, it means that the mixture ratio of gasoline is too rich and the combustion is not sufficient. Excessive gasoline mixing ratio, in addition to polluting the air, is also accompanied by increased fuel consumption, weak acceleration, and easy carbon accumulation inside the engine. It must be adjusted as soon as possible.
You should pay more attention to the smell of the exhaust. If it smells pungent, the carbon monoxide value of the engine may be adjusted improperly. It is best to check it thoroughly with an instrument.
There are also dirty or poor quality oil, clogged air filters or cylindersPistonThe cracked oil scraper ring and other reasons may also cause the car to emit unpleasant exhaust gas. Exhaust gas is one of the statutory inspection items for car inspections. For the sake of air quality and for your own wallet, once you find that your car's exhaust gas is abnormal, you should quickly adjust it. A car with abnormal emissions is absolutely impossible to save fuel.
Zhuozhong Automotive Network

Related:

·Problems that are easy to overlook in the daily car wash process[汽车修理知识]
·Application of loosening agent in auto repair[汽车修理知识]
·Experts answer how to clean the car body stained with asphalt[汽车维护保养]
·Experts teach you how to prevent moisture and rust from cars in rainy seasons[汽车维修保养]
·Expert tips and maintenance tips Car maintenanceHave a set[汽车维修保养]
·Distributed fuel injection pump for automobile diesel engine (1)-basic structure and working principle (picture)