What are the best Ford repair shops?
RepairPal Certified shops can diagnose and repair your 2006 Ford Five Hundred. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
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so is it part of the alternator? What would cause the voltage to stay around 11.75volts when charging?
Bad connections, bad battery, dirty armature/brushes, bad regulator, etc.