Crankcase Ventilation Valve

What is a Crankcase Ventilation Valve?

The Crankcase Ventilation Valve is part of the car Engine system. We have 5 associated problem symptoms connected to it.

We also have 2 owner problems that mention it.

What problems can be caused by a faulty Crankcase Ventilation Valve?
2 problems that mention the Crankcase Ventilation Valve
Oil leak blowing out of breather hose

Problem with oil blowing out of breather hose and into air filter housing. Recently sailed through MOT emmision tests and compression test seem ok and no loss of power experienced. Suspected blocke...

2000 Citroen Xsara Picasso 1.8
Posted: Dec 22, 2011
High pressure in engine cause oil leak

1997 Citroen Xsara 1.8i 16v Exclusive
Posted: Apr 2, 2011
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