[emtor]

2008, V70.
Engine: D5244T5.

Bought a V70.
First thing I did was the PCV test with a rubber glove on the oil filler hole.
No surprise, the glove inflates at idle, pulling the oil level stick in order to help the engine getting rid of some of the over-pressure does not change this,-glove still inflated.
Revving the engine causes the glove to be sucked in slightly.
As I understand it, these Volvos have two different PCV circuits: -One for idle which uses vacuum from between the airfilter-box and the intake of the turbo, and one for higher engine RPM's which uses vacuum from the turbo.
So far so good,-but getting a thorough explanation on how this system works and all it's parts and hoses on youtube/google is not to be found.
So my question is;-is there anyone here with knowledge enough to be able to explain how the PCV-system works so that I can diagnose the problem properly?
Of course, I could always throw parts at the problem, and why not buy a brand new Volvo while I'm at it . . . diagnosing first and then buy parts is better.