How To Clean Windshield Washer Fluid Reservoir. To do this open the hood of the car and follow the lines running from the wiper fluid reservoir to the nozzles. Typically these are small black hoses with a Y-shaped coupling that connects both the nozzles in your vehicle to the washer fluid reservoir.
You can add mixed white vinegar with distilled water to your windshield washer fluid reservoir. Dip the brush in warm water and vigorously scrub in and around the nozzle to free any dirt and debris that may be causing the clog. Scrub the inside of the reservoir with a toothbrush to remove stubborn stains.
If you dont know how to drain windshield washer fluid from the container consult your owners manual or a.
You can also use an old toothbrush and some warm water to clean your cars wiper fluid nozzles. Place a clean suitable drain pan to catch the windshield washer solvent when the windshield washer hose is disconnected. You can then proceed with pouring in your freeze-resistant washer fluid. If you are not certain about the type of windshield wiper fluid you have then consider complete drain out.
