I have 98 ford ranger and seems the wipers are going on the blink. Most of the time the wipers do not work on the intermittent settings or the just get stuck mid-swipe. However, the reg and fast speed settings work. I live in Alaska so I need to get them taken care of soon. One auto repair place said the wiper motor needs replaced ($70 part) and and another said it was the switch. I don't know what that means. Please advise so I can make an informed decision or at least know the right questions to ask the repair shop. Any advice is greatly appreciated.