Wipers not clean? Abnormal noise? Teach you a trick to solve!

You can refer to the following methods to check the problem.

Open the lead cover to see if the drive link is out of place (this is the most common cause).

Check that the fuse is in good condition.

Disassemble the motor cord plug to turn on the power supply, and use a multimeter to measure whether there is voltage.

If the fuse is intact and the motor has no voltage, check whether the circuit and turn signal combination switch is intact.

Generally, the motor will have a burnt smell when it burns out.

If you turn on the power supply and measure the normal voltage at the wiper motor, you can consider that the motor is broken.

Pay attention to whether the pole is connected to the wiper rocker arm in the correct way. Some of the arms are screwed to the rocker arm, while others are locked with a buckle.

Pull the wiper up and touch it with your finger to check for damage to the cleaned rubber wiper and the elasticity of the rubber blades. If the blades are aged, hardened, or cracked, then the wiper is broken.

During the test, the wiper switch is placed at various speed positions to check whether the wiper maintains a certain speed at different speeds. Especially in the intermittent working state, it is also necessary to pay attention to whether the wiper maintains a certain speed when it is in motion.

Check the wiper status and whether the wiper rod has uneven swing or leakage. If the following three situations occur, it means that the wiper is unqualified: first, the swing is not smooth, and the wiper is not beating normally; Second, the contact surface of the rubber and the glass surface cannot be completely fitted, resulting in wiping residue; Third, after wiping, the glass surface presents a water film state, and fine stripes, fog and linear residues are produced on the glass.

During the test, attention should be paid to whether there is abnormal noise in the motor, especially when the wiper motor is humming and does not rotate. This indicates that the mechanical transmission part of the wiper is rusted or stuck, and the wiper switch should be turned off immediately to prevent the motor from being burned.

<><The wipers are not clean, and there is an abnormal sound, so teach you a trick to solve it

Wiper "3 major self-test guide" manual.

The front windshield is cleaned regularly for self-inspection.

Guideline 1: Windshield contamination leads to unclean scraping and abnormal noise. Normally, the front windshield of a car is an important glass for the whole vehicle.

It can be "sheltered from the wind and rain" during driving, but when the car is driving, resin, insect fat, or dust with grease in the air often fall to the surface.

When these sticky substances fall on the glass, the wiper often does not achieve a good cleaning effect, which is also the main reason for the unclean scraping and abnormal noise! Therefore, the solution to the problem of unclean wipers and abnormal noise is to clean the windshield regularly. Resin and insect grease on the windshield can be easily removed with glass water or alcohol.

If there are grease stains on the windshield, you need to use toothpaste or a professional glass degreaser to remove them.

Replace the strip for self-testing.

Guide 2: Damage to the wiper strip leads to unclean scraping or abnormal noise. In order to protect the glass while scraping off the moisture, the wiper rubber strip is usually made of soft rubber material, but the rubber material is easy to age, which is also destined to be a consumable product in the front skin of the wiper strip.

Normally, the wiper strip only has a service life of about one year, and the wiper strip with an expired life is easy to be defective when used, resulting in unclean scraping and abnormal noise. The way to deal with it is to replace the wiper strip with a new one in time. Wiper strips are usually simple to replace.

Remove the fixed buckle, take out the old rubber strip, replace it with a new rubber strip and attach the buckle to the card, and easily extend the life of the wiper in four easy steps.

In addition, for the method of using sandpaper to polish the rubber strip circulated on the Internet, it is not recommended to try it here, because after the sandpaper is sanded, the original lubricating coating on the rubber strip is rubbed off, but it is not clean and there is abnormal noise.

Replace the wiper arm for self-test.

Guide 3: The wiper arm is damaged, resulting in the wiper making abnormal noise, and the wiper is not clean. If the self-test is completed.

First, two, the scraping is not clean and the abnormal noise still cannot be solved, then the latter may be a problem with the wiper arm. When the wiper is working, the spring in the wiper arm will also provide downward pressure to ensure that there is no gap between the strip and the glass in order to allow the strip to press the glass as tightly as possible. When there is a problem with the wiper arm, the adhesive strip cannot press the glass, resulting in an unclean scraping situation.

So, what can be done is to replace the wiper arm. Note that the replacement of the wiper arm is difficult and complicated, so it is not recommended to operate it yourself, and it is recommended to find professional maintenance personnel in the 4S shop for maintenance! Although the wiper is small, daily maintenance is also very important, in the high-speed state of the vehicle, if the wiper can not clean the glass, resulting in the road ahead can not be seen clearly, it is a very dangerous thing.

Therefore, driving safety is no trivial matter, please take good care of the wipers!

1. The front windshield failure causes the wiper to make abnormal noise.

Car glass can stain resin and insect grease during daily travel, and it is a good habit to clean your front windshield regularly. We can easily remove the grease from it with a glass of water or alcohol. Spray some glass of water, then wipe with a towel, and you're basically done.

If there is a colored reflection on the front stop after rain and the front stop is easy to stick into a block, there may be an oil film. The best way to remove the oil film is to wash it with an oil film cleaner. If the windshield is not clean after simple treatment.

The glass can be thoroughly cleaned with professional glass water and detergent to remove invisible build-up and oil from the surface.

Second, the problem of aging wiper blades.

Wiper blades are made of rubber. After a long period of wind and rain, it will definitely age. Once aged, it becomes relatively hard and therefore does not serve as a good cleaner.

In addition, the friction in contact with the glass increases, and it squeaks when the glass is scraped. So, if the wipers are making unusual noise, check the wiper blades. If the wiper blades are found to be aged, they should be replaced in time.

3. Wiper angle offset.

Under normal circumstances, the brush head of the wiper is perpendicular to the glass and plays the role of scraping the glass. However, once the angle between the wiper head and the glass deviates and is no longer vertical, it will cause the wiper to fail to clean or even scratch the glass, so just adjust the angle back to the vertical position. On the wiper arm of the original car, the angle is wrong resulting in uneven downward pressure, or the metal fatigue of the wiper arm spring causes the downward pressure difference to be too large.

The natural solution is to break it first and see if it solves. If it still doesn't work, you should consider replacing the spring. The hum is mainly the friction between the wiper motor or wiper blades and the front windshield, and it is impossible for a silent wiper to reach zero decibels.

Fourth, the wiper parts are rusty and loose.

On rainy days, you have to turn on the wipers to make sure you have a clear view. Wiper parts inevitably rust and become loose when washed by rain. If the parts are rusty, the wipers will squeak when they are turned on.

If the parts are loose, the wipers will not come into close contact with the windshield, and the glass will definitely not be cleaned cleanly. Therefore, it is necessary to deal with the rusted or loose parts of the wiper in a timely manner.

To replace the wipers with new ones in time, you can clean all the garbage and dust from the wipers, and then install the wipers and glass more tightly.

At this time, you must change the wipers, which means that there is a problem with the wipers, and the quality is very bad, and changing a wiper can solve the problem.

It may be that the wiper is broken, you can go to the 4S shop to get a new one, and at the same time check other parts of the car.

There is a possibility that the wiper is aging and hardening. The wipers are to be replaced to fix the underlying problem.

On the issue of abnormal noise of automobiles, it is difficult for ordinary car owners to distinguish which ones are abnormal noises and which ones are reasonable abnormal noises. Only nearly 20% of the vehicles that went to the repair shop to detect abnormal noises really had problems. Models equipped with turbocharged engines are different; Models with engine guards may also make noises due to friction; After some car owners come into contact with different cars, it is likely that due to their lack of understanding of mechanical knowledge, they mistake reasonable abnormal noise as a vehicle failure.

Therefore, learn to distinguish the abnormal noise of the car and avoid wasting time and energy.

Second, the identification method of car noise:

In practice, due to the limitations of working conditions, it is difficult to measure the sound of the car with special instruments, and the sound of the car can only be described and compared with the judgment of the sound in daily life. For example, the "rattle" sound caused by the dry friction of the bearing, and the "click" sound similar to the small hammer hitting the cement floor caused by the excessive valve clearance.

1. Correctly distinguish between normal and abnormal sounds.

The vibration of each mechanism in the work of the car will emit a variety of sounds, but the sound does not mean that the car is faulty, in order to avoid unnecessary disassembly, we must first distinguish between normal sound and abnormal noise. The normal vibration sound of each system component (such as the noise on the surface of the engine), the impact sound of the gear when shifting, the air intake sound and exhaust sound of using gas as the working source, and the gear meshing noise are all normal sounds. Abnormal noise (abnormal noise) can be divided into slight noise, general noise and malignant noise according to the impact on the performance of the car.

Slight noise, such as the flashover sound of high-voltage electric leakage, the slight loose sound of rolling bearings, etc., the general volume is small, the degree of wear of the parts is not large, and there is no significant change for a long time, and this kind of fault can still maintain the normal operation of the car without repair.

3. When diagnosing abnormal noise, attention should be paid to creating good auscultation conditions and trying to eliminate the interference of other noises, so as not to affect the accuracy of judgment.

It is best to consciously amplify or reduce the sound, that is, use a screw or other metal rod as a stestological instrument to contact the sound part to amplify the sound, or use a single cylinder fire cut-off to reduce the sound to meet the diagnostic needs. The auscultation site should be kept quiet to minimize human interference.

Wiper abnormal sound scraping is not clean solution:

1. The wiper scraping glass is not clean, which may be caused by the aging of the rubber strip of the wiper;

2. Since the wiper strip is a rubber product, it is easier to age and harden after long-term use;

3. It is more obvious in winter, so if this is the reason, I suggest you change a wiper strip, generally speaking, the wiper strip is generally changed once every one to two years.

Soap should be applied on top of the wiper as I do it a lot and it works really well.

You can replace the wiper with a new one, because this wiper has been used for a long time and cannot achieve the best results.

It is advisable to drive the car to an auto repair shop and have it checked by a professional at the repair shop.

The wiper is not clean and there is an abnormal sound, indicating that the rubber strip of the wiper has been seriously aged, cracked or wrinkled, at this time the wiper needs to be replaced, if the wiper is directly replaced, it can be solved by directly replacing the rubber strip, but the replacement of the rubber strip of the original car is very troublesome, you can use the card card to buy a replaceable rubber strip wiper to solve the problem of changing the wiper strip, which can be quickly replaced, and it is economical and trouble-free.

Wipers, also known as wipers, water picks, wipers or windshield wipers, are equipment used to brush and scrape rain and dust attached to the windshield of vehicles to improve the visibility of drivers and increase driving safety. Because of the legal requirements, cars in almost all places carry windshield wipers.