15 Lariat , 5.0. Northeastern Wi, coldest it got was -9°f, washer fluid rated to -35°f. Every morning I have to thaw my hood cowl with a heat gun for a couple minutes to spray fluid. Every time. Even when it's barely below freezing. I've ran at least 3 gallons of-35° rated fluid to flush the system. No ice build up on the nozzles, if there is I clean it away thoroughly with a brush. No luck, still freezes every time.
Anyone else with this problem?

 

This may answer some of your questions

https://www.f150forum.com/f118/inope...0082-a-366236/

 

Many people, all over the forum last week.

https://www.f150forum.com/f118/inope...0082-a-366236/

Edit: LOL

 

At least our replies were consistent

 

Same reference too. Maybe we're the same person, using two IDs... #StirUpControversy

 

WTF ???
I got a 2013 FX4 and it was -37 degrees on the highway Saturday heading up to lake country. My windshield nozzles have never frozen once yet! maybe the 2015s have changed?

 

I think its routed differently then the 09-14's. Never had this issue in my '14. I moved the tubing a bit today, we will see if that helps. I do not have the connector that's freezing up, but think it may have been getting kinked by the hood.

 

Unsure on the 09-14s, but 15-16s have a check valve that freezes. Drilling it, fixes the freezing issue.

 

Not so fast - mine has the upgraded part from the factory (no check valve), still froze.

 

Drill it... F the tsb... Since it didnt help anyways... Or put in winter fluid.