The windshield washer fluid on my 65 FB is not coming out of the nozzles. When I turn the wipers on and turn the nob I hear the pump operating but nothing comes out of the nozzles. There is plenty of fluild in the bag and the hoses are connected correctly. The car sat in a garage for 7-8 years so I'm thinking that the pump might be shot and needs to be replaced. Any suggestions on where to start looking for the problem?