Hi,
Thansk for all your responses on my last post regarding the huge oil leak. I am planning on getting the rear main seal repaired but woudl like to do the PCV service myself. Could anybody provide a pict or schematic of the system and the parts that need cleaning or replacing. I can see a few of them but not all. Also does the manifold need to be removed? Thanks!!!

Manifold does have to come off...make sure you get a manifold gasket.
Here is a thread from another forum on the how-to with pictures:
http://volvospeed.com/vs_forum/index.php?showtopic=29650

A long extension for your socket set will help you get the cumbersome screw out that's under the power steering pump. If you have this, you won't need to move the PS pump out of the way to do this. Good luck!
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1998 S70 T5 Emarald Green Metallic (125K), 2004 V70 2.5T Ruby Red (45K), Previous Owner of Black '94 850 Turbo Wagon (Sold at 140K and miss her). My cars have been running so well lately they've got me worried.