Getting a good snow storm here in MN and I just bought my truck 2004 F150 lariat crew with 5.4. Well I just ran to the store and needed 4X4 I turned the switch and the light (4X4 HI) on the dash blinked once. Well the 4X4 is working I can hear the motors locking in and out when switched on. I put it into 4 lo and the dash light works for that. It is definantly working in 4 HI because if I take it out I will just spin. Anyone ever see this and how can I fix it?

 

Mine is doing the same thing. I'm searching it right now. It's almost like when I switch it back out of 4wd I still hear the front gear churning like it's still engaged w/ no power to it. But then it stops and goes back to normal 2wd w/ no noise in the front. Yours doing that too?

 

my 4WD works as it should. When I switch it on the transfercase enguages and then the front hubs enguage so all is good but I have no dash light that confirms it (even though I know it is in 4HI)

 

was out scraping the widnows after work and when I got back in the truck the 4HI light was on? Don't know, maybe something got wet when I went threw the car wash the other day?