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05 trailblazer fuel level gauge not working
Introducing the principle in detail, the original fuel float has worn away the conduction belt on the white ceramic substrate due to the number of refueling times and the slag in the fuel tank, so the fuel gauge display is inaccurate. As for the customized fuel float, you cannot see the white ceramic substrate from the outside. It is sealed in a box. This box is leak-proof, and fuel and slag will not enter. No matter how many times you add fuel, No matter how dirty the fuel tank is, it won't go into this box, so this fuel float can guarantee that your car will be scrapped.
What is the common sense of the fuel float; the fuel float is a functional part, and the fuel float is an important part to measure how much fuel there is in our fuel tank, and then transmit a signal to the fuel gauge, we can see the level of the fuel gauge pointer on the instrument panel, and we know the inside of the fuel tank How much fuel is left. This is all thanks to the fuel float. There is also how many kilometers we can run on the fuel gauge, which is also calculated by the fuel float measurement
Symptoms: The fuel gauge scale suddenly drops to zero.
The needle of the fuel gauge is almost dependent on the fuel level sensor, so the needle of the fuel gauge is an intuitive way of showing the symptoms of the fuel level sensor. If this happens, there is a problem with the car's fuel level sensor. In this case, the fuel level sensor may be dirty and need to be cleaned immediately. If the car is more than 5 years old, it is likely that the fuel level sensor is physically worn and cannot continue to work properly. The fuel gauge suddenly dropped to zero. The reading of the fuel gauge depends on the fuel level sensor, and the scale of the fuel gauge suddenly drops to zero, indicating that there is a problem with the fuel level sensor of the car. Under normal circumstances, it is because the fuel level sensor is dirty and needs to be cleaned. Moreover, gasoline contains a lot of impurities, and the fuel level sensor is always immersed in it, which will be polluted for a long time and affect the accuracy of readings. But the age of the car is more than 5 years is necessary, and this condition means that the sensor has worn out and needs to be replaced.
This situation is not allowed in the fuel gauge of the car, it is difficult for the driver to detect, and it affects the transmission of wrong information. Many friends reported that the fuel gun would jump frequently when refueling. I think there are many reasons for this, the most important being the failure of the carbon canister in an important part of the car's fuel tank. A carbon canister is a device that shortens the evaporative emissions of gasoline in a car's fuel tank. Once the canister is clogged, it will cause frequent gun jumps.
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