Now that you understand the function of the EGR valve and why it might need cleaning, the next step is to determine when cleaning should be done or necessary. You can use the 50,000-mile gauge as a point of reference for when you need to do the cleaning.

This can cause clogs on the valve and a host of other engine problems.Įxperts agree that the valve must be cleaned every few years. The exhaust fumes are definitely beneficial but they can clog the valve once they accumulate over time. The combustion mix maintains the lower combustion temperature that keeps the NOx emissions low, as well. While this step might seem counterintuitive, it makes it possible for modern engines to run efficiently and for longer. This process enables a certain amount of burned exhaust gas to enter the intake manifold before it re-introduces fresh air into the engine. However, once the engine heats up and under load, the valve will eventually open up. This is normally closed by the time you turn on the engine. Therefore, the valve is a type of emissions-control device that is located between the exhaust manifold and the intake manifold. EGR stands for exhaust gas recirculation. The EGR Valve is one of the vital components of your vehicle’s engine. When this happens, it is important to know the proper way to clean to avoid the aforementioned issues from happening. The problems could arise when there is too much carbon and gunk that accumulate on the valve over time, which prevents it from functioning efficiently. In most cases, though, you do not need to toss it out just yet. If you notice a smell of fuel that comes out from under the hood or rough idling, then it might be time to replace the valve.

Proper maintenance of the valve is a must if you want to avoid any performance related issues on your car. An understanding of the functions of an EGR Valve.Īn average car’s EGR valve has a lifespan of approximately 10 years in service.

What does a egv valve do