2006-06-08 15:09:48 · 10 answers · asked by Mark C 1 in Cars & Transportation ➔ Maintenance & Repairs
Definition: The Positive Crankcase Ventilation valve is an emissions control device that routes unburned crankcase blowby gases back into the intake manifold where they can be reburned. The PCV system is one of the oldest emission control devices, and also one of the most beneficial. Besides totally eliminating crankcase emissions as a source of air pollution, the constant recirculation of air through the crankcase helps remove moisture which otherwise would cause sludge to form. Thus the PCV valve extends the life of the oil and engine. The PCV valve requires little maintenance. The valve and filter should be replaced somewhere around 30,000 to 50,000 miles (see the vehicle owners manual for service intervals).
2006-06-08 15:19:26 · answer #1 · answered by Wilde Enchantress 5 · 3⤊ 0⤋
The PCV valve is a spring-loaded valve with a specific orifice size designed to restrict the amount of air that's siphoned from the crankcase into the intake manifold.
2006-06-08 15:14:41 · answer #2 · answered by ktwister 4 · 0⤊ 0⤋
The Positive Crankcase Ventilation valve is an emissions control device that routes unburned crankcase blowby gases back into the intake manifold where they can be reburned. The PCV system is one of the oldest emission contro
2006-06-08 15:13:41 · answer #3 · answered by cwmcvey 1 · 0⤊ 0⤋
Positive Crankcase Ventilation
2006-06-08 15:55:37 · answer #4 · answered by Rev Debi Brady 5 · 0⤊ 0⤋
it is a one-way valve that lets emmisions from inside the crankcase to be sucked back into the intake so that it can be mixed with the new air/fuel mixture to be reburned.
2006-06-08 15:18:42 · answer #5 · answered by bobmorris1055 1 · 0⤊ 0⤋
pull over crankcase valve...
takes the oil vapors from the valve covers ...smoke and smog and redirects them back int the intake manifold...to try n and mix it with more air, and re-burn it in the cylinders...
bad valve could give you excessive smoke, and less MPG.. miles per gallon
2006-06-08 15:16:21 · answer #6 · answered by wherbie_2001 2 · 0⤊ 0⤋
Primary Crankcase Vent just helps your engine from building too much pressure inside.
2006-06-08 15:13:30 · answer #7 · answered by jeff s 5 · 0⤊ 0⤋
positive crankcase ventalation. it helps keep moisture and fuel vapors out of the inside of the engine. it can also make the vehicle run bad if its shot. it works on vacuum.
2006-06-08 15:15:40 · answer #8 · answered by jraiders48 2 · 0⤊ 0⤋
positive crank ventilation It allows your crankcase to vent into the intake manifold
2006-06-08 15:13:18 · answer #9 · answered by ozy 3 · 0⤊ 0⤋
All of the above!
2006-06-08 16:26:20 · answer #10 · answered by mobilmen59 5 · 0⤊ 0⤋