I have a 2000 I30 with about 73K miles on it. Recently, my driver side wiper (the bigger one) started dragging when it rains The passanger side one works perfeclty all the time. I have the original Nissan wiper (as I had big problems with other ones) and just changed the rubber refill. But both old rubber and new one keep dragging. When the glass is dry, there is no dragging. When I spray some washer fluid, no dragging again. However, when it rains, the driver side wiper starts dragging when going up - it almost looks like that there is some thing on the windshield that prevents the wiper from wiping smoothly. If I spray some washer fluid, the dragging disappears for a short time but then comes backs. Again, once the rain is over, it disappears.
I cleaned the windshield and wiper blade several times with Windex and other glass cleaners. I checked that the wiper arm is attached tightly and it is. What else can I do/check? Could it be the wiper motor?