My 08 f150 will not go into 4hi or lo. Also, no lites on the dash.Its happened acouple times in the past, but after switching off and on again ,its kicked in, but not this time. Any ideas on where i can start looking? Thanks.

 

There is a solenoid that may need replaced, 35 bucks and easy to do, on the passenger side underneath the hood. If that is not the cause then your hubs are out