CARS.COM — If your windshield wiper blades leave streaks and smears, or if they scrape and chatter even when there is plenty of moisture on the glass, your car could need new wiper blades. If in bad ...
Windshield wipers are powered by a small electric motor, usually mounted on the firewall or under the cowl (the area under the windshield’s base). The motor activates linkage that moves the wiper arms ...