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A PCV is a part answer to the CCV challenge. In the US we just call them PCV systems as domestic manufactures use(d) a replaceable tube/vent/orifice that used to be a annual replacement item. In the '65 model year they were required. In 1968-70 days: intake tube in the air cleaner allows filtered air in, PCV tube vented fumes into the intake and hence into the combustion chambers. Way too uncontrolled for emissions now days. A few are still around in 2000's.
ALL the easy systems are long gone....
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2005 X5 4.8IS
The Blue ones are always FASTER....
Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, “Dart Light” package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green
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