By Jordyn Grzelewski From The Detroit News Ford Motor Co.’s new-vehicle sales in the U.S. ticked up 1.8 percent year-over-year in the second quarter and 31.5 percent in June, the Dearborn automaker reported Tuesday. In all, the Blue Oval sold 483,688 vehicles in the second quarter and 152,262 last month. For the month of June,…