On February 18, 2009, it was announced that New York Red Bulls head coach Juan Carlos Osorio had traveled to El Salvador with the hopes of bringing Pacheco to Major League Soccer. Pacheco had been scouted for several months, most notably during FIFA World Cup qualification matches, as well as during the UNCAF Nations Cup tournament. It was initially announced that Pacheco signed with New York Red Bulls on March 5, 2009, but due to difficulties surrounding his International Transfer Card the New York front office did not officially announce his signing until April 17, 2009. In the meantime Pacheco started training with the Red Bulls on April 7, 2009 and after his official signing made his first appearance on April 18, 2009. After a bright start, Pacheco struggled on the field for New York, and the team terminated his loan deal before the end of the season.