The positive crankcase ventilation or PCV system uses engine vacuum to draw crankcase vapors into the intake where they are directed into the combustion chamber and burned. This keeps pressure from developing in the crankcase which could otherwise cause gaskets and seals to leak. It also reduces sludge build up by drawing out water vapor. Once the engine reaches 212 degrees Fahrenheit (100 degrees Celsius) water in the oil turns to steam and is extracted with the other engine vapors.
Strictly speaking it doesn't have a pcv valve it has a pcv system. Generally the part that gets plugged is the oil trap. Pretty much the whole pcv system is under the intake manifold and you have to remove it to do any work. Look on any sight that sells parts for volvos and they'll probably have a diagram of the system.
Draft tube or pcv system.Draft tube or pcv system.
It is a filter for the pcv system.It is a filter for the pcv system.
PCV valve is under the induction system
pcv valve wont work properly
The PCV valve is on top of the valve cover. Should be a hose connected to it.
It does not have a pcv valve. The system uses a fixed orifice in the rear elbow on the valve cover.It does not have a pcv valve. The system uses a fixed orifice in the rear elbow on the valve cover.
No PCV valve on this engine. Has "PCV system". Hose from valve cover to throttle body. Nothing to replace.
Your PCV valve ( or PCV system ) could be plugged ( positive crankcase ventilation )
No.No.
pcv valve
There is no pcv "valve" on the 2.2 but the pcv "system" keeps oil from getting into the intake. I'm trying to fix my 2.2. Oil everywhere.