What items do you need for car maintenance?

1 Cleaning throttle nozzle can also be collectively referred to as cleaning carbon deposit. This project has the highest price, expensive materials and expensive working hours. This is a project that varies from car to car, and it needs to be checked and determined. If you check, generally only check the throttle, and use the computer to see the throttle opening at idle speed. If it is too large, it proves that there is more carbon deposit and needs to be cleaned up. However, the situation of the air inlet and the fuel injector is invisible and basically not checked. As long as the throttle is dirty, it is recommended to clean it at the same time. Generally, a 20,000-kilometer car will be really dirty, but some cars are very clean, depending on the purpose of the car. Cars running at high speed won't be dirty, so there's no need to clean them!

2 The throttle, air inlet and fuel nozzle do not need to be thoroughly cleaned, only the throttle can be cleaned. This place is the dirtiest and has the greatest impact, and the cost of cleaning the throttle is not high. The next time you need to clean the throttle, you can clean the carbon deposit in the air intake, fuel injector and cylinder together, which can achieve the cleaning effect without wasting money. Similarly, the three-way catalytic converter does not need cleaning. As long as the car doesn't break down, it is suggested that it doesn't need to be cleaned all the time. Unless there is a fault code, or the automobile exhaust is not enough, it can be cleaned.

3. Four shifts of balance and replacement of air-conditioning cores are generally done together in 4S shops, and the frequency of replacement of air-conditioning cores is actually relatively high. Like an air filter, it gets dirty easily. Generally, it will become dirty after a quarter of use, so it is time to replace it in time, otherwise it will affect our health!