Positive Crankcase Ventilation—three dirty words, but do they really need to be perceived that way? In general, the PCV system has two main functions: vapor relief and liquid separation. PCV systems ...

In the diagram above, we see what, for the most part, looks to be a standard combustion engine, with a piston, crankcase, and ...

Venting a typical V-8 engine isn't a complex affair. A breather atop each valve cover is usually all that's needed. Of course, replacing one with a PCV valve to introduce a bit of vacuum into the ...

Every engine has some sort of crankcase breathing system. The internal combustion process creates pressure, some of which makes its way past the piston rings-along with fuel vapors-and into the rest ...

BMW of North America has announced a major recall effort affecting over 917,000 vehicles in the US. The issue concerns fire risks caused by the positive crankcase ventilation (PCV) valve, as reported ...

Now, Toyota is patenting an improvement of its hydrogen-combustion engine. The tech reduces the amount of oil that can reach ...

Question: I'm working on my Ford E-150 van with a 4.2-liter. Can you tell me the location of the PCV valve for this engine? I took the air housing covers and the engine cover off looking for it, but ...