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The Exhaust Gas Recirculation (EGR) valve reduces combustion temperatures by recirculating a portion of the engine's exhaust gases back into the intake manifold. This process dilutes the air-fuel mixture, lowering the overall oxygen concentration in the combustion chamber. As a result, the peak combustion temperatures decrease, which helps reduce the formation of nitrogen oxides (NOx) and improves overall engine efficiency. By controlling combustion temperatures, the EGR system contributes to lower emissions and enhanced engine performance.

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3mo ago

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How does an EGR valve work?

an egr valve opens to put inert gases in the combustion chamber to lower the temperature. this is done to reduce NOx emissions that are produced at high temperatures.


Does a bad egr valve cause pinging?

Yes, a bad EGR (Exhaust Gas Recirculation) valve can contribute to engine pinging, or knocking. The EGR valve helps reduce nitrogen oxide emissions by recirculating a portion of the exhaust gases back into the intake manifold, which lowers combustion temperatures. If the EGR valve is stuck closed or malfunctioning, it can lead to higher combustion temperatures and increased pre-ignition, causing pinging. Properly functioning EGR systems help maintain optimal combustion conditions and reduce the likelihood of engine knock.


What is the EGR valve on a 1999 Buick Century do?

Exhaust gas recirculation (EGR) Basically, it feeds some of the exhaust gas back to the intake manifold and then into the combustion chamber. It lowers the combustion temperature to reduce oxides of nitrogen.


Will bad egr valve make engine run hot?

Yes, a bad EGR (Exhaust Gas Recirculation) valve can cause an engine to run hot. When the EGR valve fails to open or close properly, it can lead to an improper mix of exhaust gases and air in the combustion chamber, resulting in higher combustion temperatures. This can cause overheating, as well as increased emissions and potential engine damage if not addressed. Regular maintenance and timely replacement of a faulty EGR valve can help prevent these issues.


What does the egr vlve do?

The EGR (Exhaust Gas Recirculation) valve is a critical component in an engine's emissions control system. It recirculates a portion of the exhaust gases back into the combustion chamber, helping to lower combustion temperatures and reduce nitrogen oxide (NOx) emissions. By introducing exhaust gases, it also helps improve fuel efficiency and engine performance under certain conditions. Overall, the EGR valve plays a vital role in meeting environmental regulations and enhancing engine efficiency.


What is an egr valve for a 87 Mitsubishi mighty max?

The EGR (Exhaust Gas Recirculation) valve in a 1987 Mitsubishi Mighty Max is a component that helps reduce nitrogen oxide (NOx) emissions by recirculating a portion of the engine's exhaust gases back into the intake manifold. This process lowers combustion temperatures and improves fuel efficiency. A malfunctioning EGR valve can lead to engine performance issues, increased emissions, and potential failures in emissions testing. Regular maintenance and inspection of the EGR valve can help ensure optimal engine operation.


Is the egr valve apart of the emission system?

Yes, the EGR (Exhaust Gas Recirculation) valve is a crucial component of the emissions control system in vehicles. It helps reduce nitrogen oxide (NOx) emissions by recirculating a portion of the exhaust gas back into the engine's intake, which lowers combustion temperatures. This process contributes to meeting environmental regulations and reducing harmful emissions from the vehicle.


Is it a big problem if the EGR Flow needs replaced on a 2001 Toyota Camry?

Replace the EGR valve. It routs 1200 degree exhaust into the 1800 degree combustion chanbers to decrease preignition and reduce nox.


What problems can an EGR valve cause?

it will cause pinging running your combustion hotter


How does the EGR valve work on a 2000 Chevy Monte Carlo?

The EGR (Exhaust Gas Recirculation) valve on a 2000 Chevy Monte Carlo helps reduce nitrogen oxide emissions by recirculating a portion of the exhaust gases back into the engine's intake manifold. When the engine is running, the valve opens at certain conditions, allowing exhaust gases to mix with the incoming air-fuel mixture. This process lowers combustion temperatures, which in turn reduces the formation of harmful NOx emissions. The EGR valve is controlled by the engine control module (ECM), which determines when to open or close the valve based on engine parameters.


What happens to the nitrogen in an internal combustion engine?

They become oxides of nitrogen or the emission NOx, this is controlled by the EGR valve to lower combustion temperatures and lower the NOx gas wich contributes to phot chemical smog, the stuff you see in the air.


Can a bad EGR valve cause a catalytic converter to fail?

Short answer: YES! Longer answer: The EGR valve is designed to recirculate some exhaust gas into the intake, in order to cool combustion temperatures somewhat. If the combustion temps exceed 1100 degrees (actually common in gasoline engines) then oxides of nitrogen are produced. these gases are what we see as visible smog. If the EGR valve fails, it can lead to very high exhaust temps which can gradually melt the insides of the catalytic converter. If a failed EGR is combined with a lean fuel mixture, or over-advanced ignition timing, the melting of the converter happens very quickly.