Recently it's been around -15 and at first the windshield washer fluid wouldn't squirt out but the wipers did. Then the windshield fluid light went on. Filled it up even tho there was half full in there... The light was still on, then I checked my coolant res and it was empty, filled that bad boy up. Light still on ok whatever. Then one day I go to wash my windshield and the fluid squirts on but the wipers dont go, and I'm sitting there at the stop light like shiiiiit... Then after about 30 seconds the wipers barely start working then speeding up to where they should be. Then the next day it happens again, but this time about after a minute then the wipers barely start working. Now they don't work at all and that damn windshield fluid warning light is still on. And I don't know what to do. Why did they stop working?