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How To Test Windshield Washer Pump

A windshield washer pump is an essential tool for any car owner. When it starts to rain, water collects on the windshield and needs to be pushed away in order to see. If your windshield washer pump doesn’t work, you’re left with a wet windshield and no way to clear it. In this blog post, we’ll show you how to test your windshield washer pump and fix any issues that may arise.

What You’ll Need

To test the windshield washer pump, you’ll need:
-A jug or container with a wide mouth
-A funnel
-A hose
-A car

Start by filling your jug or container with water. Place the funnel over the top of the jug or container and turn it so that the narrow end is pointing down. Connect the hose to the funnel and place the other end of the hose into your car’s exhaust pipe. Turn on the windshield washer pump and wait until it starts spraying water onto the ground. Once it has started spraying, wait about 10 seconds until it has stopped spraying before measuring how much water has come out of the hose. If there is a problem with your windshield washer pump, your water flow will be low.

How to Test the Windshield Washer Pump

Windshield washer fluid is used to clean the windshield. If the pump that dispenses the fluid fails, the windshield may not be clean. To test the pump, follow these steps:

1. Disconnect the battery cable from the engine.

2. Check for leaks by spraying a small amount of water onto the ground and checking for wet spots on the ground beneath where you sprayed water

3. Check for power by jumpering connections between battery terminals and engine terminals or turning your ignition switch to “on” with the key off

4. Clean all debris from around and under the pump using a shop vacuum cleaner fitted with a hose attachment

How to Fix a Windshield Washer Pump That Doesn’t Work

If you have a windshield washer pump that doesn’t work, here’s how to fix it. First, turn off the power to the pump by switching the breaker off at the panel. Next, remove the hose from the pump and unscrew it from the tank. Check for any clogs in the hoses or tube. If there are any, use a plunger to clear them out. Reconnect the hose to the pump and screw it back on. Turn on the power to the pump and check for leaks. If there are no leaks, then your pump is probably bad and needs to be replaced.


If you’re ever in a situation where you need to know if your windshield washer pump is working, this guide will teach you how to do just that. By following these steps, you can test your pump and determine whether or not it needs replacement. If you think your pump might be broken, don’t hesitate to take it into a mechanic for repair.