Hi everyone I have a 2009 f150 and this is the problem i'm having with my truck. The truck will not shift into 4 hi or 4 low while idling or on the fly. However if I shut the truck off and put the electronic control in 4 high and then start the truck again it will shift into 4 high and work fine. Any ideals what could be causing this issue , both iwe actuators replaced last year along with new vacuum hoses for the truck.

Thank-you