Green maintenance and repair methods for common faults of automobiles

<> "Six Common Car Error Maintenance Methods.

There are some misconceptions in the use and maintenance of automobiles, which are formed for a long time in the era of low level of automobile manufacturing, backward repair methods and lack of testing methods. These misconceptions sometimes seem to be correct, but in fact, they are very harmful, which will cause losses to the vehicle and threaten personal safety, and it is more likely that the hidden danger of the accident is buried, or the performance of the vehicle is reduced, the wear and tear is accelerated, and the life is shortened.

1. The tighter the pump fan belt, the better.

The tighter the belt, the better. If the belt is too tight, it will not only elongate or break, shortening the service life of the belt, but also lead to deformation and bending of the generator shaft and water pump shaft and early damage to the bearing due to excessive tension. The tightness of the automobile engine fan belt should meet the technical requirements, and the deflection of the normal belt assembly is 10-15mm.

2. The engine temperature is not afraid of high or low.

Some people think that when driving, the engine temperature is afraid of high and not low. In fact, when the engine temperature is low, it is also very harmful. The service life of the engine should be ensured by driving at the normal temperature specified in the car's instruction manual.

3. Bake the oil bottom with a blowtorch.

Baking the oil bottom with a blowtorch in winter will not only cause chemical changes in the additives in the engine oil and lose the original performance, but also make the oil cemented and the oil bottom deformed, which is easy to cause disasters. The best practice is to use an oil that is suitable for the lowest temperatures of the local winter. Where possible, it is best to park the vehicle in a garage with thermal insulation facilities.

4. Blindly remove the engine thermostat.

If the thermostat is blindly removed due to the high temperature of the engine, the coolant can only be circulated for a large period of time, and the cooling intensity cannot be adjusted, which is difficult to ensure that the engine works at a more suitable temperature, but makes the engine often work at a low temperature, resulting in a decrease in engine power, accelerated wear and tear, and an increase in fuel consumption. If the engine thermostat fails, and the engine temperature is still high after the engine is overhauled or replaced, the other parts of the cooling system should be overhauled and the thermostat cannot be removed.

5. The tire pressure should be high rather than low.

Some people like to inflate their tires at a higher pressure, believing that this will overload and save fuel. This is incorrect. If the tire pressure is too high, the tire contact surface will be reduced, the wear will be aggravated, and it is also easy to puncture.

The tire pressure is too high, so that the adhesion coefficient of the tire decreases, reduces the braking effect during braking, increases the amount of slip, and causes greater harm to driving safety. It is not good for the tire pressure to be too low, which will cause shoulder grinding, tire bending, and increased fuel consumption. It should be inflated according to the standard air pressure indicated on the tire, and the inflation volume is generally 5% of the standard air pressure is more appropriate.

6. The engine is heated up at idle speed.

When the temperature is raised at idle speed, due to the low speed, the oil pump cannot press the lubricating oil into the lubricating surface quickly, and the oil pressure is also low, so that the moving parts of the engine work in the state of dry friction or semi-dry friction; Due to the poor atomization of the fuel at low temperature, the unburned fuel will enter the crankcase, wash away the oil film on the cylinder wall, and also accelerate the wear of the parts. Therefore, a few seconds after the engine starts, a fast idle speed should be used to heat up and improve the lubrication conditions of the engine.

1. Adverse reactions: A pool of inexplicable liquid leaked from under the car, and the liquid level height of the coolant dropped. Car maintenance tips: "three points of repair, seven points of maintenance", rain and snow days, be sure to pay attention to driving safety and car maintenance.

Causes: Usually the cause of the drip is a crack in the rubber tube connecting the coolant tank to the engine.

Green maintenance: The anti-rust quality of deteriorated coolant decreases, which not only easily leads to damage to radiators, pipelines, hoses and other components, but also causes environmental and air pollution because the main component of coolant is ethylene glycol, which leaks to the ground. However, it is difficult to visually determine whether the coolant has deteriorated, so change the coolant regularly and do not wait until it fails.

It is generally recommended that the vehicle should be replaced with a new coolant every 40,000 kilometers or two years, and the cooling fan belt must be replaced every two years. 2. Adverse reactions: the engine does not ignite.

Cause of the disease: The start of the engine is completed by the current of the battery to push the spark plug to ignite, so the starting system fails, which is likely to be caused by the rust of the battery or the dripping of the battery. Green Maintenance:

Every two months, check whether the battery fluid in the battery is sufficient. If this is insufficient, distilled water can be added to the appropriate height. At present, most cars use maintenance-free batteries, so water cannot be added without authorization.

In addition, check the positive and negative end contacts of the battery every year for rust or dirt. If there is, you should go to the 4S store in time to clean it up to keep the circuit unblocked. After the battery is repaired, it can delay the scrapping time of the battery, reduce the waste of resources and the pollution of the environment by the waste battery.

3. Adverse reactions: the noise of the engine exhaust increases, and the exhaust emission also exceeds the standard. Causes:

The exhaust gases of the engine are oxidized at high temperatures, which is likely to cause leaks in the exhaust system. Green maintenance: check whether the pipes and interfaces of the exhaust system are corroded by exhaust gas, and whether the interface pads are washed out.

If a leak in the exhaust system is found, the leaking parts should be repaired or replaced in time. An annual inspection can not only ensure the normal operation of the exhaust system, but more importantly, reduce the pollution of harmful substances in the exhaust gas to the environment. 4. Adverse reactions:

Fuel consumption of automobiles is constantly increasing. Causes of illness: There are many reasons for the increase in fuel consumption.

But the most common and easily overlooked is the check of tire pressure. Insufficient tire pressure will not only lead to increased driving resistance, resulting in higher fuel consumption, but also affect the service life of the tire. Green Maintenance:

Self-spare tire pressure gauge to check tire pressure frequently. Don't forget to check the spare tire, so as not to find that the spare tire is out of gas when you urgently need to replace the tire. Tire pressure can be higher than usual when temperatures are high, so it's more accurate to measure tire pressure in the cold or shade.

Often, tires should be swapped every 10,000 kilometers to avoid too much difference in front and rear wear. If you need to replace severely worn tires, it is best to replace 2 or 4 tires together, and tires with the same texture can be replaced front and rear. In addition, tires with a polyline pattern help save fuel.

: When the car travels for a certain mileage, the dashboard quickly shows that the amount of lubricating oil is insufficient, usually there are 3 reasons: 1It is possible that there is a problem with the sealing of the engine piston, resulting in too large a gap between the piston and the cylinder wall, resulting in oil burning2

Adverse reactions: Increasing fuel consumption of automobiles.

Causes: The most common is insufficient tire pressure, which not only leads to increased driving resistance, resulting in high fuel consumption, but also affects tire life.

Green maintenance method: self-spare tire pressure detector. Check your tyre pressure frequently.

Don't look to check the tire pressure of the spare tire, so as not to find that the air pressure is insufficient when changing the tire. When the temperature is high, the tire pressure is relatively large, so the air pressure is measured because the temperature is low or in a cool place. @北海陆风汽车.