So I got a message on the dash to check charging system. It's a 2014 Sport with 100,000 miles. The battery is a 3 year old Motorcraft that tests fine so I figure maybe it's the alternator. Not out of the question given age and mileage. But when I run a voltmeter test while running I get 13.7 volts. Would this be low enough to warrant the dash warning? I know ideally it should be 14 or higher. Anyone with any experience on this? I plan on taking to get looked at next week and will probably just end up replacing the alternator and belt for piece of mind.
