What to Do When the Car's Spray Nozzle is Clogged?
2 Answers
Car spray nozzle clogging is often caused by poor-quality windshield washer fluid, which tends to produce scale on the nozzle, thereby blocking it. Use a pin or similar tool to unclog or clean the nozzle, then spray a few times to resolve the issue. It's important to carefully select windshield washer fluid and use qualified products. Regularly spraying can effectively prevent scale buildup. The basic diagnostic methods for common car washer system faults are as follows: 1. Washer motor does not operate: When pressing the windshield washer button, the motor does not run, but the fuse is intact. Possible causes include: open circuit between the fuse box power lead and the washer motor; open circuit between the washer button control lead and the washer motor; damaged brushes or open circuit in motor leads; open circuit in control switch leads or damaged contacts. 2. Washer operates but sprays weakly or not at all: When pressing the windshield washer button, the motor makes noise but sprays weakly or not at all. Possible causes include: clogged tubing between the reservoir and the pump, clogged nozzle; slippage between the motor rotor shaft and pump impeller; low brush spring pressure, severe commutator contamination, partial short circuit in armature coil, or excessively tight pump gland. 3. Fuse blows immediately when pressing the washer button: This fault is often caused by clogged hoses or nozzles. During troubleshooting, proceed from the outside in and from simple to complex tasks.
I've also encountered clogged washer nozzles before, and it's really annoying. Don't rush to replace them just yet—try gently poking the nozzle holes with a sewing needle or a pin. Sometimes it's just dirt stuck inside. Remember to turn off the engine and engage the handbrake before you start. Last time, I found that the windshield washer fluid I kept in the car was of poor quality and prone to scaling, so I switched to an antifreeze type, and it hasn't clogged since. Prevention is actually more important—when washing the car, use a high-pressure water gun to clean the window-washing system, especially under the wipers where dust tends to accumulate. If you really can't fix it yourself, a quick repair shop can handle it for just a few dozen bucks—don't push yourself too hard.
