A PCV valve assembly includes a housing having a fluid inlet and outlet. A valve is disposed in the housing between the fluid inlet and outlet and is movable in an axial direction between a plurality of positions. The housing supports a heating element having a positive temperature coefficient material that is in proximity to at least a portion of the valve for automatically heating the valve and response to a given voltage. The material produces a first heat in response to a first temperature and the given voltage. The material produces a second heat that is less than the first heat in response to the voltage and a second temperature that is greater than the first temperature.
