What Causes the Wiper to Make Abnormal Noises?

[Nicola]

The abnormal noise from the wiper indicates a malfunction in the wiper system. Below is an analysis of the causes and solutions for wiper noise: Specific causes: When the wiper makes abnormal noises, it usually signifies an abnormality or malfunction in the corresponding part, leading to issues such as the wiper not working, intermittent operation, continuous operation without stopping, or failure to reset. Solutions: After the wiper sweeps one or two times, observe whether any scratches are left and check if there is moisture remaining on the windshield. If these signs are clearly visible, it indicates that the rubber blade of the wiper has aged and should be replaced with a new one. If the wiper has been used for an extended period, it is recommended to replace it promptly.

[IsaacAnn]

I've got plenty of experience with noisy wipers. Last time during a heavy rainstorm on the highway, the sound was like fingernails on a chalkboard - absolutely spine-chilling. The key is identifying the type of noise: if it's a squeaking sound, it's most likely due to hardened wiper rubber blades losing their elasticity, essentially like scraping glass with hard plastic; a grinding noise often means loose wiper arm springs preventing proper blade contact; the most annoying is that clicking sound indicating rusted wiper linkage. Once I noticed wiper chatter with water streaks - turned out to be an oil film on the windshield. The solution is simple: thoroughly clean the glass with dish soap, inspect blades for cracks, and lubricate wiper arm joints with a few drops of engine oil. Never delay repairs - my colleague once waited too long to replace his and ended up scratching his windshield badly.

[CamilaDella]

Mechanics often encounter issues with wiper noise. Upon disassembly, several typical faults can be identified: When the rubber blade edges develop jagged wear, they produce a harsh squeaking sound during operation; insufficient tension in the wiper arm springs causes the middle section of the blade to lift, resulting in uneven wiping and a jumping noise. The most troublesome issue is worn wiper motor gears, which create a ticking sound similar to a clock spring getting stuck. During repairs, I've noticed many people make the mistake of dry wiping—activating the wipers directly when the windshield is covered in dust. The grit can instantly scratch the rubber blades. Another common error is forcing frozen wipers to operate in winter, which can damage the linkage at best or burn out the motor at worst. To extend wiper lifespan, it's recommended to lift the wiper arms when parked, but remember to do this only after turning off the engine to avoid damaging the hood.

[DelGeorge]

The other day I was driving in heavy rain when the wipers suddenly started making an awful squeaking noise. I did some research and found that noisy wipers are actually quite common. The rubber blades tend to harden after about six months of use, especially after being exposed to intense summer heat which can cause deformation. Tree sap or insect residue on the windshield can also trigger that annoying sound. Now I've developed a routine: wiping the blades with wet wipes weekly and using glass degreaser to clean the windshield monthly. Once when I was in a hurry and found frost on the windshield, I immediately turned on the wipers to clear it - that's how I ended up with cracked blades. Later I learned to first use the AC defroster. Ladies, a word of advice: don't cheap out on off-brand wipers. The aftermarket set I bought online last time trembled right after installation, but switching back to OEM blades immediately restored the silence.

[DeCole]

The worst fear during long-distance driving is wiper malfunction. The weirdest issue I've encountered was wiper juddering in rain but working fine in clear weather. Upon inspection, I found pits on the windshield caused by stones kicked up by trucks. When the wiper passes over these uneven spots, it bounces with a thumping sound. Some car owners modify their washer fluid by mixing in dish soap or homemade detergent water, but this alkaline solution actually accelerates rubber blade deterioration. On highways, pay special attention—low-quality blades may float due to wind pressure at speeds over 100 km/h, causing poor wiping and strange noises. Remember to check three things before rainy season: blade flexibility, wiper arm pressure, and windshield cleanliness. Once at a rest stop, I temporarily polished the blades with toothpaste, which surprisingly reduced the noise.

[Michael]

After driving for fifteen years, I've got some home remedies for dealing with squeaky wipers. Over time, the rubber blades develop a hardened surface layer, and lightly sanding them with fine sandpaper dipped in water can be a quick fix. But the key is to address the root cause: check if the blades have any gaps, if the frame is deformed, or if the dust cover on the connecting shaft is cracked and letting water in. Last year during the rainy season, my wipers kept making a clattering noise—turned out the wiper arm shaft was rusted and stuck. A dab of Vaseline fixed it. Remember to clean out the sand and dirt from the blade slots when replacing the rubber; many people don’t realize that accumulated dust in the blade base can also cause shaking. Before the rainy season hits, it’s best to give your wiper system a maintenance check. Spending a few bucks to replace the rubber blades can save you half the cost of replacing the entire wiper set.