2000 S40 No vacuum from PTC Nipple

[G Martin]

Question, I have cleaned the PVC system in my son's 2000 S40. I cleaned the oil separator, the block inlets, upper and lower, the hose to the top of the crankcase and the hose to the PTC nipple and the PTC nipple itself. I can blow air into the crankcase from the PTC nipple side and I can blow air into the oil pan. I can see through the PTC nipple so I know its not clogged. I am still not getting suction at the PTC nipple for the crankcase. I have airflow into the turbo and the turbo vanes spin freely. Do I not have enough airflow to generate suction? The car runs ok but of course it blows oil out of the oil fill port. Or am I missing some piece from the PTC? it doesn't LOOK like it's missing anything... any ideas?