What Causes the Car's Windshield Washer Fluid Not to Spray?

[Will]

The reasons for weak or no spray may include: 1. Low windshield washer fluid level; 2. Damaged hose; 3. Clogged filter screen; 4. Blocked spray nozzle. The specific functions of windshield washer fluid are as follows: 1. Cleaning performance: Windshield cleaner is formulated with various surfactants and additives. Surfactants typically have wetting, penetrating, and solubilizing functions, thereby achieving cleaning and stain removal. 2. Anti-freeze performance: The presence of alcohol and ethylene glycol significantly lowers the freezing point of the liquid, providing anti-freeze effects and quickly dissolving frost. 3. Anti-fog performance: A single-molecule protective layer forms on the glass surface, preventing fog droplets and ensuring clear visibility. 4. Anti-static performance: The substances adsorbed on the glass surface after use eliminate static charges on the glass. 5. Lubrication performance: The ethylene glycol in the washer fluid has high viscosity, providing lubrication to reduce friction between the wiper and the glass, preventing scratches. 6. Anti-corrosion performance: The cleaner contains various corrosion inhibitors, ensuring no corrosion to any metals, car paint, or rubber, guaranteeing absolute safety.

[AustinRose]

As someone who has been driving for quite some years, I find it quite common for small car windshield washer fluid not to spray out. The main reasons usually include a few aspects: the nozzle holes can easily get clogged by dirt or small leaves on the road, blocking the water flow; another reason is insufficient washer fluid in the reservoir, leaving nothing to spray; in winter, low temperatures can cause the hoses to freeze or the pump motor to fail, leading to malfunction; additionally, common electrical issues like blown fuses or poor wiring connections can also cause problems. If this happens, I would first open the hood to check the fluid level and top it up to see if that helps; if the fluid level is sufficient, I would use a fine needle to gently clean the nozzle holes; if cleaning doesn’t work, I’d check the fuse box and replace any blown fuses; finally, I’d consider issues with the pump. Regularly cleaning the nozzles and using antifreeze fluid in winter can effectively prevent such problems.

[LaTucker]

When encountering a situation where the windshield washer fluid doesn't spray, I consider it a significant safety hazard, especially during rainy days when visibility is poor. The causes often stem from clogged spray nozzles or empty washer fluid, with aging pump motors or cracked hoses also being common factors. A blown circuit fuse can also interrupt the flow. I would recommend immediate action: check the reservoir fluid level and add washer fluid, clean the spray nozzle holes, and if that doesn't work, quickly replace the fuse and check for pump noise. Don't wait, as poor visibility could lead to accidents, and timely repairs are crucial.

[AubreeLynn]

When I encountered this issue while repairing my car, here's a simple solution: First, check if the washer fluid is sufficient, and top it up if it's not; if there's enough, clean the nozzle holes by gently poking them with a needle; if it still doesn't work, it might be a blown fuse or a faulty pump; replacing parts yourself saves money and is convenient, but make sure to operate safely.