That's the problem. The spring is missing. The spring is what holds tension on the wiper arm keeping it tight against the windshield.
Don't laugh, but take a look at the picture attached. It's your picture. In yellow, I indicated where the spring should be. At this point there are two choices. If there is a salvage yard that allows you to remove parts from the vehicles (u-pull it), go there and simply remove the spring or the entire arm from another vehicle like yours. I don't think you can purchase the spring new, but I have been wrong before, so check with the parts store. If the spring isn't available and there is no salvage yard, you need to order a new wiper arm (not the blade).
Please let me know if you have questions or need help. Also, let me know what you find out from the parts store.
Also, there is a difference between the left and right. If it's the driver's side, you need the left. I did look up the part number for the left. Here it is:
Copy and paste that onto a google search and you'll find many options and prices.
Let me know if I can help.
Wednesday, December 4th, 2019 AT 7:18 PM