Give this a try ,,it works for me every time
Roll down the window on the door that will not open ,,,
stand out side the truck and put one hand on the outside door handle
put your other hand on the power door lock switch for UNLOCK
Now at the same time hit the unlock button , again and again ,,over and over ,,,while you flip the outside door handle UP over and over again ...
and the door should open
you will need to replace the door latch and the exterior door handle ,,both will have springs in them that are broken
any more info on this ,,just ask , we can go back and forth on this page