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Old 08-12-2011, 11:01 PM   #121
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Test Engineer: make sure you talk to the Service Foreman, not the service writer, and not the Service Manager. Not to diss the others -- but generally it is the (sometimes, partially) on-the-tools Service Foremen who know the most. Generally, this could be described as on-center EPAS (Electric Power Assisted Steering) inappropriate intervention and effectively "stiction", causing two-armed attempts as steering correction, and then subsequent over-action when resistance breaks away. Only happens after an extended period at highway speeds. Has been happening to fairly sizable contingent on 2012 Focus owners, but clearly not to all. Others have described this as a break-down in communication between actual steering rack position, versus indicated and transmitted steering rack position, where the EPAS then attempts to react to what it perceives is a requirement, and in fact, it is not. The EPAS ends up fighting the driver for control.
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