Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - wipers arent working properly
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Old 09-24-2007, 02:30 PM
joe_padavano joe_padavano is online now
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The GM wiper motor uses a shunt winding wound in the opposite direction to both provide slow speed and park. When the contacts in the motor go bad, you get the pulsing motion you've described. It's happened to several of my cars and always required a new wiper motor to fix it.
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