The Exhaust Gas Recirculation (EGR) valve in your Ford F150 is the main emissions control component in the EGR system. This valve is right at the intake manifold. It opens a small passageway between the exhaust and the manifold to allow a metered amount of exhaust to run back into the engine. Such back flow reduces the combustion temperatures and helps regulate the formation of oxides of nitrogen. Your Ford’s EGR valve is opened through the application of vacuum to its control diaphragm. Some requirement goes for a certain amount of exhaust back pressure before opening the valve. Modern vehicles often have electronic valve that uses one or more solenoids or a small stepper motor. Valves should remain closed while the engine is cold or at idle. They should only open when the engine warms up and finally runs at part-throttle. Once the valve sticks shut or is disconnected, Nitrogen Oxide emissions will definitely soar and detonation will surely result. If it sticks in the open position or fails to close all the way, it will just stand as a vacuum leak resulting in a rough idle, hesitation, and stalling. Your EGR Valve must be well fastened by a device known as the gasket. This gasket should be a quality one so that appropriate protection is provided. Perhaps, one of the best names that you can trust when it comes to your EGR valve gasket is Felpro. Your Ford Felpro EGR Valve Gasket is a flexible material that is placed between the EGR valve and the mounting surface to prevent external leaks. Such gasket must be capable of withstanding extreme temperatures. For your high-quality Felpro EGR Valve Gasket, just come to our online store and we will surely help you acquire it as soon as possible. Check out our parts catalog for your easy Felpro 9469433 FP70149 search.