But the hazards do work.
Are they different relays? Or something else?
Apparently the flasher relay is kind of buried under the dash.

2001 4.6

 

Here's a related post... at least a place to start.

https://www.f150online.com/forums/ex...ront-back.html

I wish the fellow would've come back to tell us what they fixed, if they fixed it.

I have a hunch it is something water related. So you might want to check your GEM and fusebox first for water intrusion/corrosion.

 

Interesting that you think its water related. We've had two days of heavy rain and so humid floors are wet. Even my laptop keyboard was acting up.
I've had a skip on Cyl 3 in rainy damp weather and that came back. So I changed to cop to fix that.
Maybe after a day or two of dry weather they will come back. The truck is only a weekend warrior so I can let it sit.

 

I believe the same flasher relay operates both the turn signals and the 4 ways. I'd suspect the multi-function switch, the pins on the connector can loosen. If you have a tilt wheel, move it up and down and see what happens.

 

That hazards are run from an "Always Hot" fuse, the turn signals are run from a "Hot in Run" fuse. Check that "Hot in Run" fuse, see owner's manual.

The two outputs of the flasher then go to the MFS separately.

 

And we have a winner.....
When I pulled out of the driveway yesterday I lowered the steering wheel. Not even sure why.. But just raised it up one notch and the flashers are back.
thanks gls. I never would have made that connection. So should I just leave well enough alone and not adjust the wheel anymore, or am I looking at a repair down the road anyway?

 

Just pull the covers off the steering column and look for the stretched harness or pulled wire.

Light blue wire.

 

You should repair it correctly. I can see someone getting in the truck and mess with the steering wheel and now you are having no flashers.