Washer Fluid not pumping

Mine did same think on my 2001 379. I pulled tube off at reservoir blew air up towards wipers. They worked fine after that.

 

I had an issue where my washer fluid wouldn't pump. Replaced the pump, and it didn't help. Wiper motor eventually quit, and when that was replaced everything started working perfectly again.

Just a thought.

Mine didn't sound like it was trying to pump, though.

 

If you can see the fluid level in the reservoir, make a mark where it is. Run it a minute or so and see if it came down any, if so, look around for fluid water to start dripping somewhere. Maybe a hose come disconnected somewhere difficult to see.

If none seem to be leaving the tank, try and find some place as close to the tank as possible to disconnect the hose and see if you can get it to pump anything out there. If so, then you know where to start looking for a blockage or broken/cracked hose. If your'e good about always using good clean mix, then it's might be a bad pump. If you use questionable quality mix or allowed trash to get inside the tank, then you could have a damaged pump or a blockage elsewhere due to trash or sediment hanging up.

I assume you're testing the pump/wiper action with the engine [and key on] to be able to hear better what's going on?

If they sit empty [and ran dry] for a long time, that's a good way for an impeller to freeze up but if you hear it buzzing and whirring, then this may or may not be likely but sometimes the impeller will come undone from the shaft ... the motor turns but shaft slips in the impeller because maybe the impeller is stuck due to drying out.

 

Two things.

if you have access to the tubing at the pump, then disconnect it and blow low pressure air through it.

If you have stuff coming out of it, then remove the tank, empty it out and replace the pump, also if there is a screen on the bottom, clean that with air.

These pumps for the past 30 years have plastic impellers in them and they break off, the motor will still run but it won't pump. Sometimes it takes just a grain of sand or something small to wedge itself in between the impeller and the housing to cause a break.

 

One thing I would do, if the washer fluid hose is run through any harnesses where you have no visual on the tube itself, is to install new tubing. Run the new tubing where you have access to it if possible. When this tubing is ran through wiring harnesses as some manufacturers do, it tends to rub and weep fluid into the wiring loom. Bad things can happen if this occurs. Also, when incidents like what you are experiencing occur, it is much easier to diagnose with the tubing exposed. Just my .02

 

take a real small pin or wire and clean out the nozzles, that fluid sometimes gets hard when you have not used it for a while.

 

get a torch tip cleaning tool and no more problems