I do not know much at all when it comes to this stuff but when I try to engage 4hi or 4lo the light wont come on. I have no idea what happend it just randomly started doing this. Is this something I should take into ford?
Thanks,
Chris

 

Check this thread maybe you'll find some answers here: https://www.f150forum.com/f4/no-4x4-need-help-35494/