Wiper motor: maintenance and repair. Wipers not working: what to do?

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

The windshield cleaning system on a car should be serviced periodically. This is necessary for its proper operation, because the system can fail at the most inopportune moment. To prevent this from happening, you need to follow a few simple recommendations. Let's see how the wiper motor is serviced and repaired, what are the weak points of the system and what to pay attention to first of all.

Road safety first

Whatever electronic security systems the car is equipped with, it is necessary to monitor all this. As practice shows, the least attention is paid to wipers and elements of this system.

Many people ignore the symptoms of failure of the same motor, wiper trapezoid or injectors. As long as it works, it's good. That is why the system remains maintenance-free from the purchase to the very sale of the car. However, the wiper motor has its own specifica resource that increases significantly if the node is periodically serviced.

Wipers do not work: ways to fix the breakdown

In the event of a failure of this node, it is recommended that you first of all pay attention to the mounting block and the integrity of the fuse and relay. If everything is in order, then proceed to the next step. When liquid is not supplied to the windshield, then you immediately need to check the lines. It is likely that one of the tubes jumped off the tee and the washer just pours out under the hood.

Correct this situation is quite simple. It is necessary to remove the trim under the hood and connect the hose to the tee. In some cases, the procedure can be performed without dismantling the protection, simply by bending its edge.

Checking the lines, go to the injectors. Over a long period of use, they can become clogged. To clean them, you can use the most ordinary needle. If after that the wipers do not work, then go to the motor.

Wiper Motor Repair

This node in most cases is unattended, that is, not collapsible. But this does not stop experienced motorists. This is especially true in cases where there is no extra money for a new motor. To do this, take a canvas for metal. It is necessary to cut the motor at the transition point (step). Disconnect into two parts and see the anchor, winding and core.

All these parts are usually not in the best condition and usually have signs of corrosion. Carefullyclean the engine parts. For this, fine-grained sandpaper or another similar tool is suitable. For example, a VAZ wiper motor has such a weak point as an oil seal. Over time, it cracks and leaks liquid into the body, which causes the parts to become covered with dirt and begin to rust. This may damage the device.

Rubber seals

Gaskets and seals are made of rubber. Over time, they lose their positive properties. Due to temperature changes, they tan and crack, the same happens due to an aggressive environment. For this simple reason, oil seals need to be changed periodically.

If this is not done, it is quite possible that the device will fail. At the next maintenance of the glass cleaning system, it is advisable to change the seals and rubber gaskets.

Do not forget that the wiper blades themselves are also rubber and should also be checked regularly. Often the replacement is done once a year. If the brushes are made of silicone and of high quality, then a couple of years can pass, but hardly more. This is due, again, to temperature fluctuations.

Wiper motor replacement

If there is no time and desire to do self-repair, then you can simply purchase a new motor and install it in place of the old one. But first of all, you need to make sure that it is faulty. Often the case is in the wiring, the fuse has blown or the contacts have oxidized. All this can lead to the fact that the motor will not show signs of life.

Checking the wiring inconnection points to the motor. You can also use a multimeter. If voltage is applied to the contacts, then the matter is in the motor itself. If not, then first check the condition of the fuse, and then look for an open in the circuit.

All these procedures will not take much time, but the result should eventually be. For such work at the service station, they can take several thousand rubles, or even more. So it makes sense to do it yourself. If the matter is still in the motor, then it needs to be changed or repaired.

Steering column malfunctions

This unit often breaks down on cars with high mileage. It is usually serviced throughout the life of the vehicle. Over time, the contacts burn out, which becomes the main cause of the steering column switch failure.

It can be either repaired by yourself or simply replaced with a new one. The second option is naturally costly. Depending on the brand of car, the switch can cost from 2 to 20 thousand rubles. It is quite logical in this case to do repairs, especially since there is nothing complicated about it.

Dismantle the switch and conduct a visual inspection for defects. If there are burnt contacts, then we pick up a soldering iron and correct the situation. Almost always, the steering column switch can be repaired, the only exceptions are cases of board breakdown, although there are craftsmen here.

Summarize

The price of the wiper motor depending on the caris significantly different. Usually it costs several thousand rubles for a VAZ and more expensive for foreign cars. If only the pump changes, then everything is easier. When the entire unit with an electric motor goes under replacement, the cost of such pleasure is not small.

In any case, it makes sense to revise the system, find the failed parts and try to repair them, if not, change them to new ones. It is worth highlighting the following main malfunctions of the glass cleaning system according to the main features:

• wipers do not work at all speeds - most likely the fuses have blown or their contacts have oxidized;
• system works only in intermittent mode - possible relay failure;
• gearbox works, but brushes do not move - gear teeth are licked or crank nut on gear is not tightened.

As for other breakdowns, then everything is individual. In one case, the problem may lie in a faulty nozzle, in the other - in the pump. Careful inspection from smallest to largest in any case will lead you to the node that failed.

For example, the rear wiper motor breaks extremely rarely, since it is not used so intensively. Modern cars are equipped with one pump, both on the windshield and on the rear window. This somewhat simplifies the task, because the fewer details in the node, the more reliable and simpler it is.