Bought my car with 4k miles on it. The windshield washer seemed very weak. Then it stopped working altogether. I refilled it with 1 gallon of fluid. It seems like an entire gallon spilled out the bottom of the car. I still have no spray. I can hear the pump buzzing, but zero comes out of either nozzle? Anyone seen this? Simple fix or take it to the dealer? Thanks for all responses.