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An EGR or Exhaust Gas Recirculating Valve controls a small passageway between intake and exhaust manifolds. When the valve unlocks, intake vacuum draws exhaust through the valve, reducing the engine's octane requirements and lessening the risk of spark knock, which can be damaging to your engine. Thus, a failed EGR must be replaced, or the risk of engine damage will increase. At Auto Parts Warehouse we stock nothing but the best EGR valves for your truck, van, SUV, or car. We sell for less because we buy direct, saving you time and money. No need to run around for the best prices, our match or beat price guarantee assures you that our prices are the lowest available anywhere. What's more is that our parts are of the highest quality as we only stock EGR valves that meet or exceed stringent OEM specifications. You save and get the best parts; what could be better than that? Maybe shopping online at any time of the day comes close. Our store never closes, shop at any time to realize the best savings on EGR valves. Order right now and we will process your order quickly and ship your EGR valve out right away.
Choosing the Right EGR Valve for Your Car
The EGR or exhaust gas recirculation valve was first used in vehicles in the 1970s. It was one of the first ever known forms of green technological innovations that car manufacturers applied in their vehicles. The fundamental function of an EGR valve is to reduce nitrogen oxide emissions, which is very detrimental to health. When combined with moisture and sunlight, these harmful gases turn into smog.
If you're shopping for a new EGR valve, you need to consider several factors in order to make the right choice. First off, you need to know the major types of EGR valve. Basically, all these valves function the same way, but each type has a unique assembly of parts like the pintle or the opening and the diaphragm.
Types of EGR valve
Single diaphragm EGR valve - This is the oldest type of EGR valve. This type is operated by a vacuum, a diaphragm, and the opening. The vacuum directs the flow of pressure to the diaphragm. At a certain temperature, the diaphragm would prompt the valve to open to let some exhaust gas in to lower the temperature in the combustion engine.
Positive back pressure EGR valve - There is usually a "P" stamped on the part code of the valve of this type. In this valve, the exhaust gases freely flow in the pintle shaft. The pressure of these gases controls the movement of the shaft and allows the air to flow inside the engine.
Negative back pressure EGR valve - This type looks very similar to the positive back pressure type, though you can recognize this by the "N" stamped on it. This type is controlled by two things: engine vacuum, which creates back pressure, and impulses, which regulates gas flow into the engine.
Other factors you should consider
Once you have figured out the right EGR valve type for your ride, you need to check on the quality, brand, and price. Quality and brand go hand in hand since well-known labels are known for their durable products and reliable warranties. As for price, it's best to take a look at what various retailers have to offer and compare rates. Don't forget to check if what you're buying already includes all the essential mounting hardware such as gaskets, bolts, and hose connectors. You'd want a replacement that's easy to install especially if you are planning to do it all on your own.
How to Replace an EGR Valve
It's easy to tell if your car is having problems with its EGR valve. In most cases, there are two scenarios. When the valve is stuck open, it causes leak in the vacuum that often results in low combustion, and engine stall. This is because the engine is full of exhaust gases that oxygen cannot penetrate inside to initiate combustion. The other problem is when the valve is stuck closed. The level of nitrogen oxide continues to rise because it cannot escape through the exhaust pipe. It causes spark knock or a disruption in engine timing. Either of these two can give you a hard time driving your car so it's better to change the EGR valve in your car ASAP.
Replacing the EGR valve is very easy! Get your tools ready and begin.
Difficulty Level: Easy
Duration: 20 minutes
- Socket set
- Phillips screwdriver
Follow these steps:
Step 1: Refer to your vehicle owner's manual to locate the EGR valve. The location may be different depending on the type and model of the car.
Step 2: Disconnect your car's battery.
Step 3: Disconnect the intake hose, the vacuum hose, and all the wirings attached to the EGR valve. You can use the screwdriver to remove them.
Step 4: Unscrew the bolts that hold the valve to the car's engine. Use the socket wrench to remove the valve from the EGR tube. If you see that there are holes in the valve itself, you definitely need to replace it. If there are no holes, cleaning the valve with carburetor cleaner, gasket scraper and small drill bit will do the trick.
Step 5: If replacement is necessary, get the new one and insert it to where you've taken out the old one. Put back all the wires, hoses, and bolts that you removed.
Step 6: It's time to reconnect the battery. A test drive is important if you want to see if everything is working well.