If only battery voltage is present at the battery on a running engine, does this mean the alternator is “bad?” No, it doesn’t. It only means that the alternator is not charging but does not reveal why.
With summertime right around the corner, Tire Review’s Mary DellaValle explains why your customers’ battery and alternator need to be up to the task, from the Tire Review Continental Tire Garage Studio at Babcox Media.