Windshield washer fluid won't pump

A washer pump in a car's windshield wiping system moves washer fluid from a reservoir through hoses. The motorized pump pressurizes the fluid to allow it to be squirted from the hoses through nozzles onto the front and/or rear windshield of a car. The washer fluid helps windshield wipers get rid of rain, dirt, or other objects that can interfere with a driver's visibility. If your washer fluid is not being sent out when activated, the solution could simply be filling the washer system's reservoir with more fluid or cleaning the nozzles and hoses. In more severe cases, the washer pump may need to be replaced. Here are steps to troubleshoot a windshield-washer pump.

Try this link in case you are stuck:

How to Troubleshoot Windshield Washer Pump

Here is another YT video for a similar purpose:

Windshield Washer Pump and System Diagnosis

There's a few things you might want to check. First, check to make sure the washer fluid reservoir is completely (assuming you hadn't already done that). After you are certain the reservoir is full, look for any possible leaks...either the reservoir or the hoses going from the tank to the windshield. If the tank and hoses are intact, turn on your windshield wipers...then try running the pump. If no washer fluid comes out, and for this you might need another person to assist you, try running the pump again...listening to make sure the pump is in fact running. If the pump does run but still no fluid comes out, inspect all of the hoses as well as all of the outlets where the fluid sprays the windshield...it is possible that the outlets may be plugged. Some common reasons for the outlets to be plugged...debris, dirt/mud, and/or wax (has anyone recently waxed your Freightliner?). Just to be sure, using a small needle or even a wire, ensure each outlet is cleared and not obstructed with anything. After that, try running the pump again. If no luck, try removing the hoses going from the tank to the windshield. Once removed, using something like a wire coat hanger, clear each hose for any possible obstruction. Reattach hoses and try running pump again. If still no luck, I would guess the problem might be located with the washer pump itself. Before opting to replace the pump, if you believe that is the problem and the pump just doesn't operate, check all fuses and inspect any/all wiring connections.

Good luck
Jason

Check fuse in fuse box inside vehicle,if good,then go to windshield washer pump and disconnect wiring,get meter and check if power is going to pump,if so then pump is at fault,if no power,thenwiring could be short somewhere to fuse box.Also check your washer hoses,that they are not kinked or came loose.Pump could just be loose.

Is your wiper fluid level good?Look for leaks at pump,it's connected to container,also check your hoses leaving pump to windshield,could be loose or binding.

Hi,
The 'stalk' that controls all these functions is faulty. Your truck SHOULD still be under warranty...Take it in.

GL,
Td

wipers and washer should be on the same fuse
could be the switch

The seam on the windshield fluid container is broken and leaking like crazy.

Can you hear the washer pump running when you operate the washer switch? The washer pump is in the bottom (side) of the washer fluid reservoir. You should hear it running. If not, you can disconnect the wire connector at the pump and use a test light to check to see if there is power and ground at the connector when you operate the switch. If there is power and ground, replace the washer pump motor. If there is no power or ground, you most likely have a bad washer control switch. (You have to replace the entire Multifunction Switch)

If you can hear the pump running, check for washer fluid pouring on the ground. If this is the case, you have a broken hose between the washer pump and the jets that spray on your windshield.

Also note that there is no way possible that your problem could be CAUSED by a fuse!
For more information on this subject, please review this article: Where's The Fuse?

First please review this article: Where's The Fuse?

Then to answer the question you asked:
The washer pump fuse is fuse#6 in the Integrated Power Module at the left front of the engine compartment. It is a 30 Amp fuse. It is the same fuse that runs your windshield wipers.
If your wipers work, the fuse is not blown.

there is another small relay box just below the windshield washer reservoir about 11/2" wide x about 4" long the washer pump relay is in there