I have a 1996 Volvo 960 Wagon that runs pretty good. I have an oil leak somewhere, but can't seem to locate it. After reading several sites, I decided to check the Oil Trap for a clog. I remove the Flame Trap, but it was not clogged, but I cleaned it anyhow.

One of the sites said that I should have a vacuum on the larger hose connected to the Flame Trap, but when I checked it there was not a vacuum, but there was air blowing out of the hose.

Does this mean that the Oil Trap/Breather Box is clogged? I have seen it called all of these on the internet, but here is what it is http://www.eeuroparts.com/Parts/31235/Oil-Trap-9135643/?diagramId=2016&diagramNumber=1 on the EEUROPARTS web site.

A mechanic said it would cost $300 in labor alone, but he said I would need to make sure I provided all of the hoses and seals. Can someone give me a list of all the parts that need to have this replaced? Is this a good price for having this replaced?

I thought about doing the work myself, but I am not sure it is something I want to get into, because it involves removing the intake manifold.

Any information you can give me would be apreciated.