There is an adjustment nut that you can loosen on the front of you wiper arms on each side, you can remove the wiper arm and rotate them approximately 90 degrees. The pivot arm on the wiper motor should be no more less than 2-3 inches above the bottom windshield for final adjustment. Pull up on the wiper and pull on the retainer tab to to adjust.
〉 Answered on Jun 4th, 2014 by Amanda J. Pierce, MBA "AJ", Certified Mechanic, Project Coordinator; Primavera Scheduler at VIGOR Alaska Industrial Shipyard & BizzM3ch Solutions
The wiper motor/switch might be going bad & will need to be replaced by a mechanic.
〉 Answered on Jun 4th, 2014 by Gelina Aquilina, Service Advisor / Mechanic at