New to the forum, I have a 2005 f-150 fx4, this pass winter I use my 4x4 HI was working perfectly, but ever since I bought the truck at 98k (now 117k) it hasn't light up on the dash, what's wrong ? FYI 4x4 LOW light ups no problem

 

Have you replaced or re-seated the bulb for it in the instrument cluster? Simplest solution is usually the right one. Usually...

 

Electric or manual transfer case?

 

IWE solenoid on the firewall behind the battery

 

It's Electric

 

Never have, if that's the case where can I get it done?

 

There's also a sensor/switch in the transfer case, could be that too.