Windscreen washer pump: device, operating principle, inspection, repair and replacement

Dirt on the roads is present not only in autumn and spring, but also in winter and summer. Behind the cars on the highway stretches a long impenetrable plume, instantly tightening with a film of mud the windshield of the car behind it. The wipers and the windscreen washer pump cope with their work, you can go for overtaking. But a sudden failure in the middle of maneuver leads to the fact that after two seconds through the windshield nothing is visible. To brake or go on? What should we do in this situation?

About the importance of the site

The windscreen washer pump can be purchased without problems, you do not need to disassemble the motor or use the lift to replace it. So why is such a responsible and easy-to-replace site often vulnerable? It's all about his service, which is not done in a timely manner. Sometimes the product is so substandard that the driver can not fix anything.

In order not to get into a stalemate on the road, it is necessary to pay attention to the quality of the pump. Usually no one does it. Nevertheless, experts carry out working experiments and find out what is worth buying and what is not. We'll talk about this at the very end, and now we'll look at the key points that everyone should pay attention to without exception.

Principle of operation

The window cleaning system is operated by pressure and fluid supply through the lines to the nozzles. For this, a special pump is responsible, which is usually made indiscriminate and can not be serviced. Its cost is small - several hundred rubles for domestic cars and a little more expensive for foreign cars. The construction provides for the main lines - plastic tubes, through which the liquid comes to the nozzles. The latter may have a different configuration of the spray. The nozzle of the nozzle has a small diameter, thereby saving the washer fluid.

It is not difficult to guess that this system includes wipers. If the windshield washer pump has failed, the liquid will not hit the glass, and the wipers will simply smear dirt, further impairing the driver's visibility. This can not be allowed.

How to check the windscreen washer pump

Many drivers prefer to simply change the old pump to a new one, without even going into the essence of the problem. That's why the new part does not give the desired result, because the old one was working, and the case turned out to be something else. To prevent this from happening, you need to check the windscreen washer pump. It is very easy to do this. First, check the fuse responsible for supplying the liquid. It is located in the mounting block, the latter has a different layout depending on the brand of the car. Next, you need to pay attention to the relay. If you pull it out and close the contacts, and everything will work, then it's in it. Next, look at the highway and injectors. They should not be clogged. Sick place of many pumps - contacts. Over time, they are oxidized.

We find and check the pump

This assembly is located in the lower part of the reservoir for the washer fluid. The latter, in turn, is almost always installed to the left of the motor, if viewed from the street to the engine. To check the contacts, you will need a multimeter and, possibly, VD-40 or any other rust solvent.

If the contacts are strongly acidified, then first disconnect them and clean the chips. After that, using a multimeter check the voltage on the wires. If it is, and the pump does not pump, then it's in it. Probably, he was burned or hammered. In the latter case, the situation is recoverable. But since the device is not collapsible, it is necessary to violate the integrity of its design.

How is the windscreen washer pump serviced?

The first thing you need to remove it from the tank. To do this, the plug is disconnected from the wires, and the motor is carefully pulled out. He sits there tightly and fixed with special "sponges" of the tank, so you need to be careful not to break anything. Next we disassemble the pump itself. On cars "Peugeot" it collapsible, so it's easier, on many other brands - one-piece. In the second case it is necessary to saw the pump, and only then it will be possible to get to its brushes and windings.

You can do it with a metal cloth. Please note that when disassembling the brush can fly out. By the way, if the latter are worn out, then they simply need to be replaced with new ones, and it is quite possible that this will help to solve the problem. Pay attention to the condition of the parts - dirt and corrosion are unacceptable. We need to clean it thoroughly and check it. A sick place is usually a relay built into the pump. The contacts between the case and the board are rotten. They can try to solder, but this is extremely difficult and unreliable. It is better to go to the nearest autoshop and buy such a relay. Moreover, it costs about 100 rubles.

Build and verify

After the new relay is installed and the armature winding is cleaned of dirt, you can start assembling. Here you need to do everything neatly. The rotor should be adjusted immediately, so that the blade groove gets into the impeller. If the case was collapsible, it is advisable to use new gaskets. Sealant is ideal for both cast and dismountable motor. It is necessary to carefully cover all cracks and holes so that the liquid does not get inside.

Then we connect the pump and check its operation. It must humble a little, which indicates its functioning. If this did not help, then, perhaps, the anchor burned. In this case it is easier to buy a new spare part. First of all, always check the windscreen washer fuse and only then proceed to more radical measures.

Let's sum up the results

We examined what the windscreen washer pump is. VAZ, for example, is easier to repair than some foreign car. The windscreen washer pump is easy to disassemble on this vehicle. You need to start by checking the electrical circuit, fuses and relays. Remember also that the operation of the washer pump with clogged jets can lead to the failure of the latter. Often motorists pour ordinary water into the tank. In winter, it freezes with the pump. Its inclusion in such a state can disable the armature and winding. Remember this and use it in the winter time to "ice-free".

As you can see, there is nothing complicated in checking the pump. This also applies to the replacement of the device. It is desirable to regularly service the system. Believe me, for several years of operation any pump will pick up dirt from the tank. Because of this, he can get stuck and, naturally, will not perform his main task. To avoid a sudden failure during driving, it is advisable not to repair, but to change the pump. Although sometimes Chinese products from the store are several times worse than the original, "running back" for 10 years. Now you know how the pump is being repaired and how to check it. It is easy to do this, you do not need any special tools or skills. Even a beginner can cope with this task.