He played junior hockey for the Kingston Canadians from 1980 to 1983. During that time he played 3 games for the Capitals in 1981-82 and scored a goal.
Siltala turned pro with the Hershey Bears in 1983-84. He remained in the minor pros and was signed as a free agent with the New York Rangers in 1986. He only played in four games for the Rangers and scored no points.