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 ...

Improper blow-by control can lead to oily breather and valve covers. Is improper control of blow-by gases in your crankcase causing problems in your engine? If any of these questions below sound ...

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 ...