I don't drive my car in the rain if I can help it, but I was trying to wash pollen dust off the windshield, but the washer pump doesn't work. I filled up the resevoir to overflowing. I looked under the front end and the bucket appears to have been removed or damaged before. I was only able to remove one bolt, and the ones that are still there just turn. Do these have rivnuts on the other end. What's the best way to get to the washer pump?