Wuling Light checks how to check the fuel pump pressure

I don't think it's realistic to test the oil pressure without dismantling the pipe, unless his oil pipe is a hose, that can be squeezed by hand, and the oil pump will not supply oil when the ignition key is not opened, then there is no pressure in the pipe, but the pressure will be a little After all, there is still residual pressure Open the ignition key Generally, the car will have 3 seconds to supply oil and build pressure, and you can test the pressure without 3 seconds of function, and you will feel that the hose will be much harder.

There is also a bolt to loosen the screw, the oil pipe is connected to the engine and the fuel supply frame is slightly loosened after the car, and the oil comes out a little looser, if the engine is reduced from the normal generation speed to shivering, it can be proved that the oil pressure is normal, this is only the generation speed, but high-speed refueling is not necessarily, the oil pump voltage will increase, the oil pump pressure will increase, so it is difficult to go straight out.

In many Japanese, German, American or a small number of domestic cars, there is an interface on the fuel supply rack like Gavolion's "now use environmental protection", some of which resemble a tire valve, and the interface can generally be checked.

There is also to remove the vacuum tube on the fuel pressure regulator, so you can also replace the speed, dismantling the vacuum tube will feel that the speed will increase by about 100 rpm, and the rapid acceleration will be a little wrong, which can also prove that the oil pump is normal.

In fact, the above is only a rough one, and it is impossible to identify.

The most practical thing is to use a fuel pressure gauge.

Hello, need to connect the fuel pressure test gauge.

Hello, you need a special pressure gauge.

It's inside the tank. You check whether there is electricity on the line of the oil pump, if there is, it means that the oil pump is broken, if not, then you have to check something else. Generally, the oil pump is likely to be broken.

It's under the dashboard in the lower left corner of the driver... And a lot of insurance in the same box. You open the lid of the fuse. Look at the inside of the box with a schematic diagram,。。 You take your time. I found it by looking for it...

The function is to suck the fuel out of the fuel tank, pressurize it and transport it to the fuel supply pipe, and cooperate with the fuel pressure regulator to establish a certain fuel pressure.

The life of the gasoline pump: Theoretically, this thing should have the same life as the car, so there is no limit on the number of kilometers and time. The following manifestations after the damage of the gasoline pump:

1. When the pump core is damaged, when the fuel supply system is working, there is no sound of gasoline pump running when the key door is opened.

2. When the pump body is damaged, the engine cannot be started because the pressure relief and fuel pressure cannot reach the specified fuel pressure value, and it cannot be atomized well.

3. Don't wait until the gasoline lamp alarm is not refueled, because the gasoline pump relies on gasoline to conduct heat and cool down, and when the gasoline liquid level is too low, it will not play a role in cooling and heat dissipation, reducing the service life.

The best way to tell the fuel pressure in a car is to pass the fuel gauge test. The fuel pressure is adjusted with a fuel pressure regulator, and the fuel pressure regulator needs to be checked for damage. If you don't have a fuel gauge, you can only test it by replacing the oil pump.

To solve the problem of the car, do not blindly check and judge the oil pressure of the oil pump, so as not to damage other parts of the car.

Photo by Wang Panpan1) @2019

Wuling Light Gasoline Pump Pumping Time for Too Long May Be Caused by the following Reasons:

1.Oil circuit blockage: If there are impurities or carbon deposits in the oil circuit, it will lead to poor flow of gasoline, which will affect the working efficiency of the gasoline pump.

2.Gasoline pump failure: If the car is used for a long time or is not properly maintained, there may be problems such as aging, wear, and loss of the gasoline pump. These problems can cause the gasoline pump to not work properly, which affects the speed at which it can pump and deliver gasoline.

3.Fuel filter blockage: Fuel filters are used to slowly filter out impurities and contaminants from fuel entering the engine. If the blockage of this component is severe, it will reduce the speed at which the fuel passes through it, affecting the speed at which the liquid flows throughout the system.

It is recommended that you carry out timely inspections and repairs, and replace relevant parts and components according to the specific situation to restore normal operation. At the same time, it is also necessary to pay attention to regular maintenance and maintenance of the vehicle in daily use to avoid similar problems.

Hello, I am happy to serve you and give you the following answers: to solve the problem that the Wuling light gasoline pump can not be pressed, first of all, check whether the wiring of the gasoline pump is correct, if the wiring is not correct, you can wire it in accordance with the instructions of the gasoline pump. Secondly, check whether the interface of the gasoline pump is damaged, if it is damaged, you can replace it with a new one to ensure the normal use of the gasoline pump.

Finally, to check whether the interface of the gasoline pump is clean, if there is dirt on the interface, it can be cleaned with detergent to ensure the normal use of the gasoline pump. In short, to solve the problem that the Wuling Light gasoline pump cannot be pressed to rise to the auspicious branch, it is necessary to check whether the wiring and interface of the gasoline pump are damaged and whether the interface is clean to ensure the normal use of the gasoline pump. Personal Tips:

When using the gasoline pump, it is necessary to regularly check whether the wiring of the gasoline pump, whether the interface is damaged and whether the interface is clean to ensure the normal use of the gasoline pump.

The best way to tell the fuel pressure of a car is to pass the fuel gauge test. If there is no fuel gauge, the test can only be done by replacing the gasoline pump. Please be clear about what the fault of the car is to be solved, and do not blindly check and judge the fuel pressure of the gasoline pump.