Windshield washer pump: device, principle of operation, inspection, repair and replacement

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42

Mud on the roads is present not only in autumn and spring, but also in winter and summer. Behind the cars, a long, impenetrable train stretches along the highway, instantly covering the windshield of the car behind with a film of dirt. The wipers and washer pump are doing their job, you can overtake. But a sudden failure in the middle of the maneuver leads to the fact that two seconds later, nothing can be seen through the windshield. Slow down or keep going? What to do in this situation?

On the importance of the knot

The windshield washer pump can be purchased without any problems, no need to disassemble the motor or use a hoist to replace it. So why is such a responsible and easily replaceable node often left vulnerable? It's all about its maintenance, which is not performed in a timely manner. Sometimes the product is so poor quality that the driver cannot fix it.

In order not to get into a stalemate on the road, you need to pay attention to the quality of the pump. Usually no one does this. Nevertheless, specialists perform working experiments and find out what is worth buying and what is not. We will talk about this at the very end, and now we will consider the key points that everyone should pay attention to without exception.

Working principle

The window cleaning system works by pressure and fluid supply through the lines to the nozzles. A special pump is responsible for this, which is usually made non-separable and is not subject to maintenance. Its cost is low - a few hundred rubles for domestic cars and a little more expensive for foreign cars. The design provides highways - plastic tubes through which the liquid approaches the nozzles. The latter can have different spray patterns. The injector nozzle has a small diameter, thereby saving washer fluid.

It's not hard to guess that this system also includes wipers. If the windshield washer pump fails, the liquid will not get on the glass, and the wipers will simply smear the dirt, further impairing the driver's visibility. This must not be allowed.

How to check the washer pump

Many drivers prefer to simply change the old pump to a new one, without even delving into the essence of the problem. That is why the new part does not give the desired result, because the old one was working, but the matter turned out to be something else. To prevent this from happeningyou need to check the windshield washer pump. It is extremely easy to do this. First, check the fuse responsible for the fluid supply. It is located in the mounting block, the latter has a different location depending on the brand of 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 him. Next, look at the lines and injectors. They must not be clogged. The sore point of many pumps is the contacts. They oxidize over time.

Find and check the pump

This assembly is located at the bottom of the washer fluid reservoir. The latter, in turn, is almost always installed to the left of the motor, when viewed from the street at the engine. To check the contacts, you will need a multimeter and possibly WD-40 or some other rust remover.

If the contacts are very acidic, then first disconnect them and clean the chips. After that, using a multimeter, we check the voltage on the wires. If it is, but the pump does not pump, then it is in it. It probably burned out or clogged up. In the latter case, the situation is fixable. But since the device is made non-separable, the integrity of its design will have to be violated.

How to repair the washer pump

First of all, it must be removed from the tank. To do this, the plug with wires is disconnected, and the motor is carefully pulled out. He sits there tightly and is fixed with special "sponges" of the tank, so you need to be careful not to break anything. Fartherdisassemble the pump. On Peugeot cars, it is collapsible, so it’s easier here, on many other brands it is one-piece. In the second case, you will have to cut the pump, and only then will it be possible to get to its brushes and windings.

You can do this with a metal sheet. Please note that when disassembling the brushes may fly out. By the way, if the latter are worn out, then they just need to be replaced with new ones, and it is quite possible that this will help solve the problem. Pay attention to the condition of the parts - dirt and corrosion are unacceptable. Everything needs to be thoroughly cleaned and checked. A sore spot is usually a relay built into the pump. The contacts between the case and the board are rotten. You can try to solder them, but this is extremely difficult and unreliable. It is better to go to the nearest auto shop and buy such a relay. Moreover, it costs about 100 rubles.

Assembly and verification

After the new relay is installed, and the armature winding is cleaned of dirt, you can proceed with the assembly. Here you need to do everything carefully. It is advisable to adjust the rotor immediately so that the groove of the blade falls into the impeller. If the body was collapsible, then it is advisable to use new gaskets. The sealant is ideal for both cast and collapsible motors. It is necessary to carefully cover all cracks and holes so that liquid does not get inside.

Next, connect the pump and check its performance. It should buzz a little, which indicates its functioning. If that doesn't work, then maybeburned anchor. In this case, it is easier to buy a new spare part. Always check the washer pump fuse first before taking more drastic measures.

Summarize

We looked at what a washer pump is. VAZ, for example, is easier to repair than some foreign car. On this vehicle, the washer pump is easy to disassemble. You need to start by checking the electrical circuit, fuses and relays. Remember that the operation of the windshield washer pump with clogged nozzles can lead to the failure of the latter. Often, motorists pour ordinary water into the tank. In winter, it freezes along with the pump. Turning it on in this state can damage the armature and winding. Keep this in mind and use "anti-freeze" in winter.

As you can see, there is nothing difficult in checking the pump. This also applies to device replacement. It is advisable to service the system regularly. Believe me, in a few years of operation, any pump will pick up dirt from the tank. Because of this, it can become clogged and, of course, will not perform its main task. To avoid a sudden failure while 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, which "run back" for 10 years. Now you know how the pump is repaired and how to check it. It is easy to do, no special tools or skills are needed. Even a beginner can handle this task.