PCV System Description
WARNING: This page is about a different variant/trim than selected.
Some of the unburned gases in the combustion chamber will leak past the gap between the pistons and cylinders into the crankcase. The blow-by gases that include the unburned gases are returned through the positive crankcase ventilation (PCV) valve and are burned. This prevents the blow-by gases from flowing into the atmosphere.
For locations of each component on vehicle, refer to Component Location Index .