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.
The absence of a shut off valve for the shower may be due to the design of the plumbing system. Some showers are designed without a shut off valve to regulate water flow, relying instead on the main water supply valve for control. This design choice may be for simplicity or cost-saving reasons.
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 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.
Some common solutions for a noisy toilet fill valve include adjusting the water level, replacing the fill valve, or installing a water hammer arrestor.
Some common troubleshooting steps for a gas fireplace control valve include checking for gas supply, ensuring the valve is in the correct position, inspecting for any blockages or debris, and testing the valve for proper functionality.
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.