This is not really a Juvi question, but...
Juvi violates probation and runs. He is found over 2 months later living with his dad. Is dad, who is well aware of his sons status, committing a crime by harboring or hiding his son?
Thanks!

Not really enough info in your post to say for sure.

Depending on the specific facts of your case its possible that Dad may be harboring but more likely is in contempt of court.