We don't mean to be the harbingers of doom, but it's unwise to keep driving if your car's engine has a malfunctioning positive crankcase ventilation (PCV) system, particularly a bad PCV valve.

The Positive Crankcase Ventilation (PCV) system rarely gets attention until something goes wrong, but mechanics are ...

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 ...

I recently heard a mechanic mention something called a PCV valve affecting engine pressure. My car has been consuming oil faster than usual, but there are no visible leaks. Could a faulty PCV valve ...