What is the reason why the fuel gauge does not show after the car is refueled? Car Plus

After the car is refueled, the fuel gauge does not show for the following reasons:

1. One is the instrument is damaged, the second is the line, the third is the oil float is damaged, first detect whether the oil float line live wire and the iron wire are normal, if not, check the line, if the oil float is removed normally, move it up and down by hand. If it moves, the oil float is damaged, and if it doesn't move, check the oil gauge.

2. Turn the key on and off again. If the switch still doesn't work, it is recommended to run for a period of time to see, run for a while and it still doesn't work, it is recommended to replace the oil float.

3. It depends on what kind of car it is, and some cars have a slow oil gauge to rise. It may take five or six minutes for it to get back into place, and it's usually mostly electronic.

The difference with mechanical type.

Precautions for use

Because the gasoline pump is in the fuel tank, relying on gasoline to dissipate and lubricate it, too little oil will not be conducive to the normal operation of the oil pump and reduce its service life.

Because gasoline expands when heated and volatilizes into gasoline vapor in the summer heat, space is needed to accommodate it. If it is too full and there is no room for it, gasoline vapor or even liquid gasoline will enter the canister.

Storage, the carbon canister is full and escapes into the air, which is not only wasteful but also pollutes the environment.

If the pointer of the oil gauge does not move, the oil float is generally broken. It is recommended to go to the repair shop to dock the oil float 2 wires, if the fuel gauge pointer to the top, the oil float is broken, if it still does not move to check the line and dashboard. If the pointer does not move after just filling up the oil, that is, the oil float is pushed on the top of the fuel tank by the buoyancy of the oil, and the pointer connected to the sensor will not move.

The car fuel gauge is very rich and advanced, it can display the fuel value in the car tank in real time, accurately tell the owner how much fuel the car consumes, and how much storage is left in the fuel tank. The owner also makes a judgment based on the display of the fuel gauge whether it needs to be refueled or how much mileage it can drive. The fuel gauge is the warning light of a car's life.

The fuel gauge is an indicator of the fuel level on the engine, which is displayed by pointer or number. Therefore, at present, the automobile fuel gauge is mainly divided into two types: digital display fuel gauge and pointer fuel display gauge.

Most of the digital display fuel gauges are equipped with LED displays for easy viewing. The fuel gauge has six functions, each of which is indispensable, otherwise it will be difficult for the owner to control the car. Car owners can decide whether they need to refuel based on the fuel gauge showing the remaining fuel in the tank.

If refueling is required, the fuel gauge also shows the exact amount of fuel added each time. The fuel gauge not only plays the role of a scale gauge, but also can more advanced and accurate display of the fuel consumption value of the car per kilometer and the size of the car's fuel consumption, whether it saves fuel. The fuel gauge will also remind the owner of the car's remaining fuel and range.

If the owner does not refuel in time, once the fuel storage amount is lower than a certain value, the car fuel gauge will have a fuel level alarm function. In addition to this, the car fuel gauge can even display the car's odometer and store real-time measurement data for three months for data management.

The display of the fuel gauge is mainly to see how much fuel, so as not to break us down halfway, prompting us to refuel in time, they all have oil level sensors to transmit signals, they are all damping sensors, relying on the oil float to slide up and down to change and prevent the transmission signal.

Generally, the oil meter does not show these several fault points, 1. The oil meter is faulty. Appears not to be displayed.

2. The fuel level sensor is faulty, causing the fuel gauge not to be displayed.

3. The float of the oil float is broken and cannot float.

4. The damping phenomenon of the sensor causes the jamming phenomenon.

5. The amount of oil added is not enough, and the float has not yet risen.

6 lines went wrong.

The above points of failure are the reasons why fuel gauges are more than just that.

In your case, you can check the oil level sensor! Thank you.

Why doesn't the fuel gauge show up when the car is fully filled?

It's a problem with your car's fuel gauge. But the auto repair department can adjust it.

There is bai in the fuel tank in the car

The oil and the fuel gauge is not displayed mainly because of the fuel sensor

Fault-induced DAO.

At present, most of the automotive fuel plate oil sensor junction weight structure is segmented resistance output mode, and the structure is generally based on sliding resistance contact piece. The fuel sensor is placed inside the fuel tank and adjusts its own resistance by adjusting the angle of the connecting rod, a sliding rheostat connected to the end of the connecting rod that floats on the gasoline level. When the amount of oil in the tank changes, the height of the liquid level will change, the height of the float will also change, the angle of the connecting rod will change, and the change of the position of the contact will produce different resistance values for the sliding rheostat, see Figure 2.

The fuel sensor is placed inside the fuel tank, if there is a fault that the fuel quantity is not displayed accurately, when it is disassembled and analyzed, the fault can not be reproduced after the parts are often removed, and how to quickly and accurately locate the sensor fault is the key to problem analysis. First of all, the relevant data is read from the BSI by the diagnostic equipment, and if there is a difference between the resistance value of the fuel sensor and the actual fuel quantity, and the other values are transmitted correspondingly within the BSI, it can be judged that the fuel sensor is faulty.

This structure is prone to mechanical wear and poor contact due to frequent switching between contacts, resulting in the fuel gauge sometimes accurate and sometimes inaccurate during vehicle driving, and it is difficult for the driver to judge the remaining oil in the fuel tank based on this.

Because the sliding resistance plate of the sensor is immersed in fuel, it is easy to age, corrode, and fail. If there are tiny impurities in the fuel tank or fuel, resulting in a short circuit or connecting rod stuck failure, the fuel display is inaccurate.

Many drivers are overwhelmed when they find that their car's fuel gauge is inaccurate, but this is a very common situation that can be adjusted to bring it back to normal. Let's talk about what to do if the car fuel gauge is not accurate, I hope it will help you.

What should I do if the car fuel gauge is not accurate?

If the car fuel gauge is damaged, the display will be inaccurate, so you can go to a professional auto repair shop or a 4S shop to replace the relevant components of the dashboard. If the fuel gauge display is inaccurate due to damage to the car oil pump accessories, then you can replace the new gasoline pump assembly. Sometimes the wiring problem will also lead to the problem of inaccurate fuel gauge, you can fully check the position of the gasoline pump or instrument assembly wiring.

Drivers can also try to adjust the fuel gauge while driving. While the engine and the three-way catalytic converter in the car are in normal working condition, the fuel tank can be opened or closed directly by strong airflow, so that the fuel gauge can be restored to normal state. When driving a car, drivers should try to choose the best gasoline.

Clean, low-impurity gasoline can effectively reduce the accumulation of debris in the fuel pump, thereby improving the inaccuracy of the fuel gauge display. If it is a brand new car, the fuel gauge display is suddenly abnormal, which may be caused by damage to the car's sensor, and you only need to replace it with a new one. If it is an old car, then you should also wash the sensor on time, and don't forget to check this position every time you maintain it.

There are many impurities in gasoline, and the sensor is soaked in it for a long time, which may affect the accuracy of the fuel meter.

How to avoid inaccurate fuel gauges?

If you want to avoid the occurrence of inaccurate fuel gauge, the driver should usually choose gasoline with guaranteed quality, and if conditions permit, you can also add No. 95 gasoline, which has less impurity content and can avoid the abnormal phenomenon of the fuel gauge. Usually go to the 4S shop for maintenance according to the time specified in the maintenance manual, which is also beneficial to the car fuel meter.

I know. It is recommended to drive the car to a 4S shop or car repair shop and find a professional to repair it.

In this case, I think you should replace the float in the car's fuel tank, because the problem with the fuel level display is caused by its damage.

I think the oil level sensor should be replaced in this case, because it is this sensor that is damaged and the display is inaccurate.

What should I do if the fuel meter does not display the amount of oil, and the reason why the car fuel meter does not display the oil is normal, is generally caused by the failure of the oil float (oil level display sensor). The oil gauge is an oil float that detects the oil level, and this problem will occur if the detection signal is distorted. Some oil level displays are computer-controlled, and computer signal failure may also lead to inaccurate display, which is very low.

How to look at the car fuel gauge in the car fuel tank, which is composed of a float connected to a metal rod, the basic principle is the same as the float principle of the toilet tank at home. When the water level is lowered, the float position will also be lowered with the progress, and then a connecting rod will be driven to start the water injection port so that the water can be injected in, and the float position will also rise when the water level is raised, and when it reaches a certain extent, the connecting rod will close the water injection port.

If the instrument fails, the instrument should be replaced, which is convenient to observe the change of oil quantity and drive safely!

This situation should be faulty. You can drive the car to a 4S shop or repair shop and let the master inspect it. It's not a big problem. Don't be nervous. The repairman will fix it.

Why doesn't the fuel gauge show up when the car is fully filled?

What happens when the car fuel gauge doesn't show full when the gas is full? Hello, in this case, generally the fuel level sensor of the vehicle is faulty caused by the oil level can not be displayed normally, you can go to the repair shop to replace the oil level sensor and then see if it is normal, if it is still not normal, that is the pointer in the instrument has a problem, I hope my answer can help you.

What is the reason why the fuel gauge does not show after the car is refueled? Car Plus

Hello, I am helping you sort out the answer to your question, please wait a while The reasons why the fuel meter does not move after adding fuel are: first, you need to check whether the line of the oil level sensor is faulty; Remove the dashboard and use the multimeter to find the corresponding fuel gauge line on the instrument for detection. If it is normal, it may be that the oil float is stuck inaccurately, in this case, it is recommended to replace the oil float.

The function of the fuel gauge is to show the value of the fuel in the fuel tank of the car.

Summary. Hello, happy to answer your questions.

What is the reason why the fuel gauge does not show after the car is refueled?

Hello, happy to answer your questions.

Hello, according to your description, it should be caused by the stuck or malfunctioning of the oil level sensor. It is advisable to try turning off the ignition, restarting the engine to see if there is any change, or driving a distance to see if there is a change. If the fault persists after the above operation, it should be that the oil level sensor is faulty.

It is recommended to use a diagnostic instrument to test the car and deal with it according to the relevant faults**.