
Here are the reasons for weak windshield washer spray: 1. When the washer fluid is low, the internal pressure decreases, resulting in weak spray. It is necessary to refill the washer fluid in time. 2. If you normally use tap water or tap water mixed with dish soap or laundry detergent instead of washer fluid, the spray nozzles may become clogged over time. In this case, the nozzles need to be cleaned, and washer fluid should be used. 3. If the pressure pump malfunctions, the spray will be weak due to insufficient pressure. This situation requires inspection and repair at a 4S shop. Additional Information: For the windshield wiper system to work better, washer fluid and wiper blades are essential. Washer fluid is specially formulated cleaning water for wipers, featuring cleaning, antifreeze, lubrication, and anti-corrosion properties, ensuring good visibility while driving.

I've been driving for over 20 years and have encountered weak windshield washer spray several times. The most common cause is clogged washer nozzles – those tiny holes easily accumulate dust or debris, making the water stream thin and weak. If you want to clean them yourself, use a fine needle to gently unclog them, being careful not to deform them. Another frequent issue is an aging or weak washer pump motor, which loses power over time and requires replacement. Insufficient windshield washer fluid in the reservoir can also cause low pressure – remember to use dedicated washer fluid instead of tap water to avoid mineral deposits clogging the nozzles. Air leaks or blockages in the tubing, especially at connection points, can similarly reduce spray pressure. Regularly inspect the wiper system during maintenance and top up with specialized washer fluid before long trips to prevent these issues and ensure clear driving visibility.

As someone with some knowledge of automotive mechanics, I believe weak windshield washer spray may involve issues with the washer pump. If the motor is broken or worn out, the force will be weak; a blown fuse in the circuit can also interrupt power supply, resulting in weak spray. Additionally, clogged nozzles can be treated with nozzle cleaner. Cracked hoses or pressure leaks will reduce water flow, and frozen washer fluid in winter makes it even more troublesome. When troubleshooting yourself, be careful not to short-circuit the electrical system. It's recommended to start with the simple steps: first check the fluid level in the reservoir, then use a multimeter to test the circuit. When replacing damaged components, use professional tools to ensure the spray angle is properly adjusted, as this affects cleaning effectiveness and safe driving.

Last time my car's washer fluid was weak, I found the reason was quite simple: the windshield washer fluid was almost empty, and it worked fine after refilling. If the nozzle is dirty, the water flow will be weak, and cleaning it with a needle improves it. In winter, if the water freezes, the pump may be damaged and need replacement. Motor failure is also common, as aging leads to insufficient power. When washing my car, I also clean the nozzle opening to prevent clogging. Address issues promptly to avoid small problems turning into big troubles.


