no
Some of the 2000 models have a PCV valve on the back of the valve cover. The other models do not have a PCV valve, but use an oil/air separator instead.
some models the pcv valve is in the valve cover on others the valve plugs into intake manifold and is connected to valve cover by hose
Valve, like valve oil which is used in some instuments
Pretty sure you mean "E.G.R. Valve" and not ERG. E.G.R stands for Exhaust Gas Recirculation Valve. Instead of letting all of the gas out of the exhaust of the vehicle after the mixture is burnt in the compression cylinder, some of it is recirculated into the intake manifold. This is done because not all of the vaporized gas is burnt out of the mixture that goes into the compression cylinder. So this recycles some of the unburnt mixture, and reduces the amount of pollution emitted by your vehicle.
Some do, some have other liquids instead, such as colored alcohol.Some do, some have other liquids instead, such as colored alcohol.Some do, some have other liquids instead, such as colored alcohol.Some do, some have other liquids instead, such as colored alcohol.
Some VCT(variable cam timing) system applications can eliminate the need for an external exhaust gas recirculation (EGR) system. The elimination of the EGR system is accomplished by controlling the overlap time between the intake valve opening and exhaust valve closing. The 5.4L 3V engine is equipped with a VCT system that allows Exhaust gases into the engine by overlapping valves instead of the use of a EGR valve and related components.
Mine does not have one! Some do, and it is on the rear valve cover.
It may be the Positive Crankcase Ventilation (PCV) valve. This valve is usually installed into the valve cover and has a hose connected to it.
some of the gases are burnt and reduced befor going to the exhaust
The pcv valve should be located on top of the valve cover. It plugs in, and should pull out with some gentle coaxing.
Various places depending on the truck. Some KW (T800) inside dashboard behind switch panel in manifold valve. Some Mack, driver side firewall or foot valve. Some IH behind driver seat. Some Freightliner under the dash by foot valve. Some Pete on floor board between foot valve and steering column. Good luck.
Generally there's a spring holding the valve close, when the internal pressure is great enough, the valve opens - until the pressure drops. In some applications, there's a weight holding the valve closed.