After reading the above I am going to just get a new tank. Only $160 from Ford new (LOL...not Porsche parts prices!).

In order to get to the hoses or the pump to flush through and drain out something like Acetone I basically have to remove just as many parts as I would need to remove in order to replace the tank.

I decided to leave the original lines they probably don't have much in them compared to the tank and can flush out over time. Removing the lines give me a headache as they pass through various areas. Both a front camera sprayer and windshield sprayers. Hope I am right there. If I am not I can change the hoses later I guess as the flow path would not put any residue back in the tank.

Nothing but the cheap blue washer fluid for me from this day forward!!

I hated the stuff. Always smeared when using intermittent wipers.
Did you call them to see if they will correct the problem? Can't just be you.

Called twice and left voicemails yes. Hopefully they will call back. I agree it can't just be me. Maybe that's why they have not called back yet LOL.

I had the same issue. Grabbed a gallon of Rain-X windshield washer fluid from Walmart when I was doing an oil change on the Yukon.

Wipers and washers were unusable.

I flushed the washer tank with a garden hose for 5 minutes.
Emptied tank with washer button.
Added 1 gallon of 50/50 solution of water and 99% isopropyl alcohol.
Emptied tank with washer button.
Cleaned windshield and wipers with ISO.
Added 1/2 gallon of straight ISO and ran half of it through the system.
Added 1/2 gallon of washer fluid to the remaining ISO in the tank and ran all of it through system.
I used the front and rear washers - alternating to let the pumps cool.

Now all is good.

^^^^^


This sounds WAY, WAY WAY better than using acetone.

I hated that Orange RainX just because of the smell.

Yeah, but it makes a good breakfast drink.

Pooping later is so easy!

So removed and replaced the washer tank yesterday. Bottom of the tank was full of Rain-X thick syrupy sludge. I don't think any amount of flushing would have gotten it out as the pump does not completely drain the tank. Removed the accessible hoses and flushed out w/ 50/50 isopropyl alcohol and water using a syringe. Did the same w/ the remaining hoses in the truck placing a rag overtop the sprayers. Installed the new tank. Wiped down the entire truck w/ 25/75 mix of isopropyl alcohol/water to remove the Rain-X that was sprayed all over (since I was on the highway at the time so it got blown everywhere but the tailgate). Installed new wiper blades. All good now.

Nothing but the cheap blue washer fluid for me from now on! What a PITA.

Did the manufacturer ever get back to you?