2006 Ford f150XLT 4x4 5.4 supercab
When I turn the **** on the dash to put it in 4HI or 4LOW it doens't do anything. no lights on the dash come on that indicate it is in 4x4.
When I turn the key to crank the truck the two lights on the dash <4hi/4 low> come on for a second as they should. .
I have checked the different fuses, all are good there,
I swapped the two relays out with each other to check that, Nothing happened.
Can someone guide me to what my problem is and where to check?
I have never put the truck into 4 wheel drive before until the other day when I attempted it. I do remember it did work, I tested it when i bought it. 4 months ago

 

Try tapping on the transfer case motor a few times

 

where would that be? is that the hog head