[mrmedic]

2011 F350 211k miles

ANOTHER PROBLEM!
4 wheel drive won’t engage. It shows the messages on the dash, but there is no drive to front wheels. Trying to pull a trailer out of wet grass, soft wet dirt, rears spinning, front doing nothing..

Fuse? Wiring harness? Something else?

if only a new one didn’t cost 70-80k……

 

[jdanielm1]

Take a look at either side of the axle and see if there is a vacuum tube disconnected.

You can lock the hubs manually and get out of the wet grass though.