【This column is jointly planned by Tencent Automobile and the old single car】
2556 words The reading time is about 4 minutes.
In the last column mentioned that the summer tire burst and temperature are not related, but it is closely related to the tire loss, in the daily maintenance, we pay more attention to the maintenance of the car's engine and parts, but ignore the four tires that really support the vehicle, some netizens ask their own vehicle jitter is the cause of the tire or the engine? Why does the tire pressure normal but keep calling the police? And so on, this issue of the single worker explains to you in detail how to maintain the tire and how to choose correctly.
First, the vehicle shake may be the tire caused by the trouble
1． The body shakes as it drives
If during the driving process, it is found that when the speed is 40 kilometers per hour, the body has a slight offset or jitter, it is generally caused by the fault of the tire, which may be a tire imbalance, and it is necessary to do a four-wheel positioning and dynamic balance, if the vehicle does not deviate, do a dynamic balance. In addition, it may also be caused by the deformation of the steel ring, and at this time, it is necessary to go to a professional repair shop for inspection and repair. There is also a possibility that it is caused by the deformation imbalance of the drive shaft, which generally occurs in more cars that have collided with the chassis.
2. Engine shakes at idle speed
Compared with the jitter when driving, idle jitter is a situation encountered by more driver friends. If the owner starts the vehicle or when the vehicle does not turn off the engine, the idle speed jitter occurs, which is generally caused by the following four problems.
(1) The engine carbon deposition is serious
When the vehicle throttle is too dirty or the engine carbon deposit is serious, it will lead to difficulty in starting, only until the carbon absorbed gasoline saturation, it is easy to get on the car, and after the car, the gasoline adsorbed on the carbon deposit will be sucked into the cylinder by the vacuum suction of the engine to burn, which will lead to idle shaking after cold start. Normally, the lower the temperature, the greater the amount of oil required for cold start, so if there is too much carbon deposit, it will lead to more difficulty in starting. The solution is also very simple, cleaning the oil circuit while checking whether the idle motor also needs to be cleaned.
(2) The ignition system is malfunctioning
Poor ignition work, spark plug fire jumping condition will lead to such failures, therefore, if it is a failure of the ignition system, you only need to check whether the spark plug has too much carbon deposition, replace the spark plug.
Unstable oil pressure. If there is no problem in the first two places, but the idle jitter is still there, it is recommended to check whether the fuel supply pressure and the intake pressure sensor are normal, because if the oil pump oil supply pressure is not normal or the intake pressure sensor value is wrong and the work is poor, it will lead to idle jitter problems. The solution requires checking the oil pressure and replacing the parts if necessary.
(3) Aging of engine components
Finally, idle jitter is also related to the aging of the internal parts of the engine, such as the engine's suspension system, if there is a problem in this regard, then these vibrations will also be transmitted to the steering wheel and cab, causing idle jitter. If it is because of this reason that the idle speed is shaking, you can mainly check the parts inside the engine, and if necessary, replace it in time.
Second, why is the tire pressure normal but frequent alarms?
If the tire pressure is alarmed, but the tire is not abnormal. Represents that the tire pressure alarm is caused by inaccurate sensor detection data or other reasons. Under the premise that there is certainly no problem with the tire pressure and tire condition, go to the maintenance agency as soon as possible to confirm the cause of the failure.
Tire pressure monitoring is a function that many cars are equipped with, this function is very practical, tire pressure monitoring system can monitor tire pressure, when the air pressure is abnormal, you can remind the driver.
Most cars are equipped with tire pressure monitoring systems that use wheel speed sensors to monitor wheel speed, which can only alert the driver when the tire pressure is abnormal, but the driver cannot see the real-time tire pressure data. Some high-end cars will be equipped with tire pressure sensors in the rim, which allows the driver to see real-time tire pressure data.
If car owners and friends often run high-speed or long-distance roads, they can also add sensors in this rim to reduce safety hazards. Tires are the only parts of the car that come into contact with the ground, and tires are very important for the driving stability and driving safety of the car.
The air pressure of the tire cannot be too high nor too low, if the tire pressure is too high, it will reduce the contact area of the tire with the ground, which will affect the grip and handling. If the tire pressure is too low, the tire will be wave deformed at high speeds, which will increase the chance of puncture. Therefore, it is recommended that riders often check their tire pressure, and also often check whether the tire surface is damaged.
3. How to maintain the tires?
1. Usual maintenance is mainly to remove the stones in the gap in the tire
The reason why the tires have a pattern is to drain water when driving on rainy roads, so don't let foreign objects fill the tire gaps.
2. Check the degree of tire wear
First of all, we must pay attention to check the degree of wear of the tire, we all know that the tire will pass through a variety of road surfaces on the road, so as to avoid the degree of wear on the tire. Then the tires have reached the time of the tire wear indicator marks, that is to say, it is necessary to replace, and to replace in time, if the tire wear is found to be uneven, this also means that there must be a problem in the use of tires, such as the occurrence of uneven wear marks is caused by the non-dynamic balance. At this time, we must also replace it in time, and we must remember to check every 10,000 kilometers to prevent partial wear, which can also extend the service life of the tire.
3. Check and replenish the air pressure of the tire regularly
Incorrect tire pressure is very affecting tire life, in fact, to know the exact value of tire pressure is very simple, open the cab door, and then on the B pillar you can find the standard tire pressure value of your car, such as Touareg's tire pressure value, light load requires tire pressure is 2.3, rear wheel requires tire pressure is 2.5, and spare tire tire pressure requirement is 3.5. If the sign is not found on the B-pillar, it is also possible to find it on the lower edge or side of the trunk and on the fuel tank lid.
Although the air pressure requirements for light and heavy loads are slightly different, it is generally not necessary to lift or deflate the tires for each short trip, and it is best to adjust the air pressure to the design value to reduce safety risks when traveling long distances.
Therefore, we must inflate the tire according to the tire pressure value on their own car, it is best to have the tire inflation equipment, adjust and observe the air pressure regularly, and now the products on the market are more mature, and the price is not high.
4. Avoid parking for long periods of time
An effective way to protect your tires is to drive more and let them run. This sounds a bit contradictory, but in fact, this can really make the tire use longer, otherwise the tire may be broken, because the main material of the tire is rubber, if it is not used for a long time, it is also constantly aging, so if you want the tire to have a long life, you must use it more.
Fourth, the choice of tires, whether to choose ordinary tires or explosion-proof tires
The disadvantages of the explosion-proof tires are also more obvious, which is also due to the fact that the tire wall of the explosion-proof tire will be relatively thick, and the hardness is higher than that of ordinary tires, so its shock absorption effect is not very good, and the relative comfort is a little worse; in addition, the explosion-proof tires are not very good in terms of performance, if you pursue the performance of ordinary tires; the last is that the life of the explosion-proof tires is not good, because its side walls are relatively thick, and the problem cannot be found immediately, which may lead to the deformation of the wheel hub. Another is because the cost of blow-proof tires is generally much more expensive than ordinary tires.
Ordinary tires need not be said more, the choice of tires or depends on their own needs.
Simplex summary
These are the common tire problems. Tires are one of the most worry-free accessories in the car in the vast majority of cases. Even if there is a certain hidden danger in losing gas or overcharging, the possibility of a puncture in a non-intense driving is also very low. But this also makes many car owners and friends ignore the possible condition of the tire. For example, the dynamic balance is not done well, but it is thought that it is the deformation of the chassis, resulting in a lot of unjustly spent a lot of money on the owner of the car is not a minority. Therefore, more understanding of automobile knowledge can be achieved instead of maintenance.
If your car encounters problems such as car use, car maintenance, maintenance, etc., please leave me a message in the comment area below, and I will answer it for you.