The blue smoke is oil being burned by the engine...and lots of it if you can see the blue smoke!
You don't really clean the PCV system as much as replace the components - and you need to do this ASAP. The AA guy? Who is that, exactly? He's completely wrong, by the way...it is the PCV (flame trap) system...it looks like this: http://www.ipdusa.com/products/4988/...v70-xc70-turbo
Directions/description here: http://www.freewebs.com/howardsvolvos/engine.htm (scroll down).
Let me guess...bought it used, it gets 5W30 oil...but you don't know what kind, exactly, just as long as it's 5W30...right?
Last edited by Astro14; 09-15-2012 at 07:25 PM.
2006 Corolla (kid's car - 155K, Eco Contacts, Castrol Edge 5W30)
2005 MB S600 (82K, Michelin AS3, M1 0W40)
2002 V70-XC (188K, AltiMax RT43, Pennzoil Ultra 5W30)
2002 V70-T5 (171K, IPD bars, Bilsteins, Conti PureContact, Mobil 1 0W40)
1992 MB 300E (Sportline - 155K, Yokohama Avid, Liqui Moly 5W40)
1990 4-Runner (V6, 4WD, mild lift - 257K, 31" BFG AT KO, Castrol 10W40)
1932 Packard Sedan (straight 8, dual sidemount spares, original paint and interior, Shell Rotella 15W40)