Automobile maintenance is a very complicated job, and various problems will be encountered in the actual operation process. Because of its complexity, maintenance is often routine, and even brings great losses to car owners.
In order to avoid this situation, you need to make preparations during maintenance, and try to choose the maintenance time according to the actual situation of your vehicle. If conditions permit, you can first do a car maintenance evaluation project to test whether the basic performance and working conditions of the car can meet its normal driving requirements.
On this basis, combined with the actual situation of automobile maintenance and the problems existing in the current automobile maintenance industry, this paper puts forward some suggestions and opinions on how to avoid and prevent some common cheating routines.
1. A comprehensive inspection should be carried out before replacing the oil filter
Inspect piston rings, cylinder heads and other components and make records.
The function of the oil filter is to filter out the moisture, impurities, asphalt, colloidal substances and carbides produced by combustion in the oil.
Before changing the engine oil, you should thoroughly check whether there are damages and defects in the internal parts of the engine, such as the wear of the piston ring, whether there are foreign objects in the cylinder block, and whether there are cracks or ablation in the cylinder wall, etc. If problems are found that need to be dealt with, they should be carried out after engine maintenance.
2. Cleaning and maintenance of engine intake and exhaust systems
The cleaning and maintenance of engine intake and exhaust systems is mainly aimed at carbon deposits inside the engine. Generally speaking, carbon deposits will lead to unstable idle speed, poor acceleration, increased fuel consumption, and difficulty in starting.
During cleaning, cleaning and maintenance must be carried out in strict accordance with the proportion specified in the product manual as required. Do not change the proportion or expand the scope without permission, otherwise the engine will be damaged.
Generally speaking, the engine intake and exhaust systems should be cleaned and maintained during each maintenance.
Generally speaking, serious engine carbon deposition is due to the quality problems of piston rings, poor operation or failure of spark plugs, resulting in excessive carbon deposition.
For the above problems, it is recommended to go to the 4 S shop for inspection and adjustment. If necessary, it is recommended to replace the spark plug.
3. When debugging the car engine, there are many items that need to be checked, such as the air filter
, air filter element, throttle valve, intake manifold, etc., so there are many items that need to be checked. These items need to be checked after the engine is started.
For example: cleaning and maintaining the air filter and throttle valve; Clean the intake manifold; At the same time, it is also necessary to use instruments to check the throttle clearance and so on.
If you don’t pay attention to these, it will cause great losses. I would like to remind everyone that you must pay attention when debugging the engine, especially when checking the air filter and throttle valve, because these two components are easily damaged.
When people don’t pay attention to these details during maintenance, it will lead to many irreparable losses.
4. When replacing the gasoline grade, the fuel system should be comprehensively inspected before replacing it
Generally speaking, when a vehicle has been used for a certain mileage, there will be a phenomenon of “burning oil”. At this time, it is necessary to make a comprehensive inspection of the vehicle.
The fuel injection system and fuel pipeline inside the engine all need further inspection.
Especially for some old models, due to serious aging or oil leakage of these components, the cylinder pressure will increase and the fuel injection volume will decrease.
Therefore, when changing the gasoline grade, you must check the inside of the cylinder before changing the grade gasoline.
5. 5 Pay attention to choosing the suitable tire model and precautions when inflating tires
Too low tire pressure can easily lead to tire burst, and too high tire pressure can easily increase the probability of tire burst.
According to the car instruction manual, it is recommended to check and inflate the tires every 4 years or 60,000 kilometers.
Specific inspection items include: checking the thickness of tires; Check the tires for scratches or cuts and the tread for excessive wear; Check whether there are bulges, damages, etc.; Check the condition of the spare tire to see if there is any air leakage in the air nozzle of the spare tire (generally, no other repairs are required after tire repair).
In addition, we should also pay attention to whether the tread depth of automobile tires meets the requirements: if it is lower than 1.6 mm (the tire width is reduced by 1.6 mm), it is necessary to consider whether the tire is eccentric wear caused by excessive wear; When the shoulder reaches the edge of the groove, it is necessary to consider whether the sidewall deformation causes eccentric wear.
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