Ford Focus Forum, Ford Focus ST Forum - View Single Post - HOW TO: Intermittent Wiper Problem Fix. AKA TSB Fix.
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Old 09-12-2012, 09:44 PM   #77
mattspencer
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Join Date: Jun 2011
Fan#: 86721
Location: Peoria, IL
What I Drive: 2003 Silver ZTS

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Fixing the relay, and the park function, also fixed the above mentioned upward drift of the wipers at higher speeds. It seems that the park function gives the wipers a hard stop at the bottom, and without that hard stop they just drift. You can hear the relay clicking on and off when the wiper is moving in the intermittent speeds.
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