Loeffler played quarterback for the Michigan Wolverines from 1993 to 1996. After suffering a shoulder injury that prematurely ended his playing career, Loeffler joined Lloyd Carr's coaching staff at his alma mater as a graduate assistant, and was a part of the Wolverine staff during the 1997 undefeated, national championship season. In 2000, Loeffler was named quarterbacks coach at Central Michigan University. After coaching the Chippewas for two years, Loeffler returned to coaching quarterbacks at Michigan for the next six years.