Having a clogged windshield wiper fluid system can be frustrating. The washer fluid is supposed to help clear your windshield of dirt, grime, salt, and anything else obstructing your view. But when the system gets clogged, you may find yourself pushing that little button desperately with no fluid emerging.
Page Contents
- 1 What causes clogged windshield wiper fluid?
- 2 How to unclog windshield wiper fluid
- 3 Tips for preventing clogged wiper fluid
- 4 When to call a mechanic
- 5 Conclusion
- 6 Frequently Asked Questions
- 6.1 What liquid can I use if I run out of windshield wiper fluid?
- 6.2 What happens if you don’t fix a clogged wiper fluid system?
- 6.3 Why does my wiper fluid shoot up over the windshield?
- 6.4 Should windshield wiper fluid be replaced periodically?
- 6.5 How can I tell if my washer pump is working properly?
- 7 Key Takeaways
What causes clogged windshield wiper fluid?
There are a few common causes of clogged wiper fluid:
- Dirty fluid – Allowing leaves, dirt, and other debris to enter the reservoir can clog the pickup tube.
- Damaged parts – Cracked hoses, blocked nozzles, or a failing pump can lead to clogs.
- Improper fluid – Using heavy or diluted washer fluid can gum up the system.
- Frozen fluid – Letting washer fluid freeze in cold weather will block the lines.
How to unclog windshield wiper fluid
Here are some steps you can take to get your windshield washer fluid flowing freely again:
1. Check the fluid level
Make sure there is adequate washer fluid in the reservoir. The level may be low, causing the pump to draw in air instead of fluid. Fill with fresh fluid if needed.
2. Clean the reservoir
Examine the fluid reservoir for any debris, leaves, or dirt. Use a small brush to scrub the reservoir clean. This will clear any clogs at the pickup tube.
3. Flush the system
Add a can of washer fluid system cleaner to a full tank of fresh fluid. Run the washers until the cleaning solution is used up. This can dissolve any built-up gunk in the hoses.
4. Check hoses and nozzles
Inspect all hoses and nozzles for cracks, splits, or blockages. Replace any damaged parts. Clear out any obstructed nozzles with a pin or needle.
5. Test the pump
Disconnect the hose from the pump and run the washers into a container. If fluid flows freely, the pump is okay. If not, replace the pump.
6. Flush with vinegar
For stubborn clogs, fill the reservoir with a 50/50 mix of vinegar and warm water. Run the washers until empty. The vinegar will break down mineral deposits.
7. Backflush the system
Disconnect the hose from the pump and attach it to a garden hose. Run water through the system in reverse for 2-3 minutes. This can dislodge stuck debris.
8. Remove frozen blockages
If the fluid has frozen, allow your vehicle to warm up indoors to thaw it out. Gently clear any ice from the reservoir opening.
Tips for preventing clogged wiper fluid
Here are some tips to help avoid clogged fluid systems:
- Use only fresh, high-quality washer fluid designed for your climate.
- Check the reservoir monthly and clean out any debris.
- Fix any leaks that could let in dirt or water.
- Run the washers regularly to circulate the fluid.
- Add winter cleaning additive to the reservoir in cold weather.
- Park your car in a garage to protect from temperature extremes.
When to call a mechanic
If you’ve tried all the DIY methods and are still battling a clogged wiper fluid system, it may be time to take your car into the shop. A trained mechanic has specialized tools to thoroughly flush the system and can diagnose and replace any faulty parts.
Signs it’s time for a mechanic include:
- No fluid comes out even with a full reservoir.
- You’ve flushed repeatedly with no improvement.
- You have pinpoint clogs in the tubing.
- The pump is making straining or grinding noises.
Continuing to operate your wipers with no washer fluid can cause damage to the blades and wiper motor. It’s better to have a mechanic properly fix the clog than risk burning out the wiper components.
Conclusion
A clogged windshield wiper fluid system can negatively impact visibility and even cause damage if left unchecked. In many cases, the clog can be cleared with some DIY troubleshooting and fluid flushing. But for a severely blocked system, professional service may be required. Keeping fresh fluid in the reservoir and regularly running the washers can help avoid problems.
| Cause | Solution |
|---|---|
| Dirty fluid reservoir | Clean debris from reservoir |
| Cracked hoses | Replace damaged hoses |
| Frozen fluid lines | Allow thawing indoors |
| Blocked nozzles | Clear nozzles with pin |
| Pump failure | Replace pump |
Frequently Asked Questions
What liquid can I use if I run out of windshield wiper fluid?
In a pinch, you can use a mix of half water and half vinegar or rubbing alcohol. But avoid using only water, which can freeze and cause damage.
What happens if you don’t fix a clogged wiper fluid system?
Driving with a clogged system can burn out your wiper motor from strain. It can also reduce visibility and cause streaking on the windshield when no fluid reaches the blades.
Why does my wiper fluid shoot up over the windshield?
If the fluid streams up instead of spraying evenly, it could be caused by over-pressurization in the system, improperly positioned nozzles, or nozzle damage causing narrow streams.
Should windshield wiper fluid be replaced periodically?
Yes, you should drain and replace your windshield washer fluid every 12 months. This prevents contamination and keeps the additive package fresh.
How can I tell if my washer pump is working properly?
Disconnect the hose from the pump and run the washers into a container. If strong fluid flow comes out, your pump is fine. Little or no flow indicates a bad pump.
Key Takeaways
- Clogged wiper fluid is often caused by debris in the reservoir, damaged hoses, frozen lines, or a bad pump.
- Try cleaning the reservoir, flushing the system, and checking the nozzles and hoses before replacing any parts.
- Use only fresh fluid designed for your climate, and run the washers regularly.
- For severe clogs, a mechanic may be needed to fully unclog and repair the system.
- Left unchecked, clogged fluid can damage wiper blades and motors.