Rough Idling : If you find that your car is vibrating and shaking a lot even when you're just sitting still with the engine running, that could be a result of the EGR valve being stuck open, closed or just clogged with residue. Any of these things can throw off the fuel-air ratio and cause the engine to perform more poorly than it should. Either from the fuel mix being too lean to have the correct kind of combustion reaction, or even because it's not burning hot enough, or the combustion reaction is occurring at the wrong time because the valve isn't releasing CO2 exactly what it needs to. You're going to have a lower power output and reduce the acceleration. Poor Performance : Because the EGR valve isn't mixing CO2 into the combustion reaction it's likely that your engine performance is going to dip as a result. If you could smell gasoline in the cabin of your vehicle, get yourself to a mechanic as soon as you can to find out what the problem is to avoid any potential Danger. This is one of the most extreme side effects of a problem with your EGR valve, but one of the most noticeable as well.
If it's bad enough you can find yourself getting dizzy behind the wheel of the car and that could be extremely dangerous for you and other drivers on the road. Excessive exposure to the smell of gasoline can leave you feeling nauseous and light-headed. It's dangerous to be breathing in gasoline fumes on a regular basis. That's going to cost you more of the pumps to keep refilling as the gas is not being burned at the correct ratio.Īnother problem here is the fumes themselves. To start with there is the obvious fact that you are now wasting gasoline. This has a number of dangerous side effects that you're going to want to avoid. At high levels you're going to notice the smell of gasoline even inside the cabin of your vehicle.
When you start burning extra gas, that gasoline can sometimes get through the reaction unburnt and into your exhaust. The Smell of Gasoline: When your EGR valve is malfunctioning, your car will start burning excess fuel as a result of the fuel-air mixture not being what it's supposed to be. When that happens, you'll probably notice one or more of these symptoms occurring in your vehicle When it gets clogged with dirt, debris, or carbon buildup from all the gases that pass through it, it can end up not working effectively any longer. The way your EGR valve works is that it has ports that allow gases to pass through.
When your EGR valve isn't working correctly any longer there are a few signs that you could be on the lookout for it to let you know there is a problem Definitely something you want to avoid if at all possible. That's an extreme end result, but it's also one that brings with it a price tag that can get up to around $4,000 worth of repairs. An overheating engine can lead to serious engine damage and end up causing metal to warp as a result.
When your engine is not burning fuel at the correct temperature not only do you have to worry about pollutants, but you're also running your engine too hot which can cause a series of other problems as well. If it's not able to recirculate the CO2, then the CO2 will be expelled in your exhaust, your engine will get too hot, and that in turn will create nitrogen oxides as well that end up being expelled in your exhaust. Unfortunately, there are times when your EGR valve does not work. When it reduces the temperature, it won't burn hot enough to produce nitrogen oxide. This suppresses the combustion reaction enough to reduce the temperature. That's the same gas that we exhale when we breathe, and the same gas that plants use to produce oxygen through the process of photosynthesis.Ĭarbon dioxide does not burn so when your engine starts getting too hot, the EGR valve can recirculate carbon dioxide back into the combustion chamber.
One of the main gases produced by the combustion reaction in your vehicle is carbon dioxide.