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en.wikipedia.org/wiki/Crankcase_ventilation_system

A crankcase ventilation system is a one way passage for gases to escape in a controlled ... The road draft tube, though simple, has shortcomings: it does not function when ... agreed not to work jointly on smog control activities for a period of ten years. ... Intake manifold vacuum is applied to the crankcase via the PCV valve, ...

www.ask.com/youtube?q=How+Does+a+PCV+Valve+Work%3F&v=EPIfI9aZHt4
Jun 10, 2013 ... Your browser does not currently recognize any of the video formats .... a PCV System Work - Also Testing and Inspection of the PCV Valve ...

auto.howstuffworks.com/positive-crankcase-ventilation-system.htm

But to do that, we're going to have to give you a quick refresher course in how ... that sucks the blow-by gases through the PCV valve and back into the intake.

www.agcoauto.com/content/news/p2_articleid/197

If the PCV valve did not regulate air flow, the engine would act like it had a vacuum leak. Too much ... Original equipment grommets work and fit best. If the PCV ...

www.streetrod101.com/positive-crankcase-ventilation-pcv-system.html

A description of how the PCV valve operates. ... one that is very popular. What is the PCV system, how does it work, and what type of pollution is being reduced?

www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-positive-crankcase-ventilation-pcv-valve

Jan 11, 2016 ... Bad or Failing Positive Crankcase Ventilation (PCV) Valve Inspection ... or the car is not working like it should, have the PCV valve looked at ...

axleaddict.com/auto-repair/How-to-do-a-PCV-valve-test

Jul 8, 2017 ... The important function of a working PCV valve, how it works, signs that it's ... the PCV valve does, what happens when it fails, and how to test it.

www.aa1car.com/library/pcv.htm

A hose connects the top of the PCV valve to a vacuum port on the throttle body, ... emissions or engine performance -- provided everything is working correctly. ... But the tapered shape of the pintle does not allow maximum flow in this position.

www.baldwinfilter.com/literature/english/10%20TSB's/94-2R1.pdf

The PCV system does this by using manifold vacuum to draw vapors ... flow or circulation within the system is controlled by the PCV Valve. The PCV. Valve is ...