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So far as I know. It was the very first (about 1971) and still the most basic anti-pollution device. It is also the easiest to replace (takes 30 seconds in most vehicles), and the easiest to "fix". Remove the PCV valve, give it a good shot of spray carburetor cleaner, and shake it. If you hear a rattle when you shake it, it's fine - put it back, you don't need to replace it yet.

A few vehicles, Jeep 4.0L inline 6 for example, use a fixed size orifice instead of a PCV valve.

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Q: Are all car engines have a positive crankcase ventilation valve?
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Where is the positive crankcase ventilation valve on a 2005 Chrysler 300?

To find the positive crankcase ventilation valve, look on the right bank of the engine. The valve is located beneath the intake manifold.


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The positive crankcase ventilation valve on a 2002 Mercury Cougar is located on top of the engine; in the valve cover. It removes harmful fumes from the engine.


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Yes, both the 6 cylinder and 4 cylinder engines have PCV (Positive Crankcase Ventilation) valves.


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Do you mean PCV ? - ( Positive Crankcase Ventilation ) valve


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A PVC Valve shuts off water A pcv valve is for positive crankcase ventilation in an engine


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Positive Crankcase Ventilation Answer 2: The Positive Crankcase Ventilation (PCV) system reduces hydrocarbon emissions by scavenging crankcase vapors. It does this by circulating fresh air from the air cleaner through the crankcase, where it mixes with blow-by gases and is then rerouted through a PCV valve to the intake manifold. - Haynes Repair Manual #36071


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What is a positive crankcase ventilation filter?

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