I have a 2000 Ranger with power door locks but they won't turn over. Like I will hit the button from the inside and it tries to push the locks open but it doesn't have enough power to do so i guess? Same problem if i'm trying to lock them from inside. Also turning the key in the exterior key slot only unlocks the drivers side door (it manually opens it definitely not electrical) and nothing on the passenger side. any idea what the problem is?