My '89 Max won't clean the windshield. I don't know if the line is plugged or motor bad. Should the motor make a noise if the line is plugged? Where should I start checking and looking? Have any of you had this problem?

 

the motor should make a noise if the lines are clogged. First place to check, the nozzles themselves. Get a small pin and clean them out, since wax and polish have a tendency to build up in there. Then check the plastic tubes under the hood coming from the nozzls. These will lead you to the pump. It's a relatively simple system. Good luck