Does EGR reduce NOx?
Abstract: Exhaust gas recirculation (EGR) is an effective strategy to control NOx emissions from diesel engines. The EGR reduces NOx through lowering the oxygen concentration in the combustion chamber, as well as through heat absorption.
Does EGR reduce engine life?
It does shorten the life EGR systems took a million mile semi truck engine down to a 600,000 mile engine. I don’t know how a JD EGR system works but some EGR systems cool the Exhaust gasses with a oil cooler in turn superheating engine oil.
Is EGR delete legal?
An EGR delete is ILLEGAL in ALL 50 STATES. All vehicles are required to meet federal emissions standards. The penalty for an emissions component alteration can be in the thousands of dollars.
Is EGR good or bad?
Without EGR, hotter combustion temperatures would produce a more complete burn (meaning less particulate matter), but would in turn lead to excessive NOx production. Ultimately, EGR is here to stay.
How does EGR reduce the production of NOx?
To reduce the amount of NOx pollutant emitted from your vehicle, exhaust gases need to be cooled before being emitted from your vehicle. In order to achieve this, they are introduced back into the combustion chamber via the exhaust gas recirculation (EGR) valve; this reduces the temperature and thereby inhibits the production of NOx emissions.
What should I do if my EGR valve is not working?
If the stem or diaphragm doesn’t move, disconnect the thin vacuum hose from the top of the valve. Place your finger on the opening of the vacuum hose you just disconnected. Increase engine rpm again as you did in the previous step. You should feel vacuum or a slight pressure on your finger tip, depending on the particular system type.
What are the different types of EGR valves?
This helps to ensure the car maintains fuel efficiency and emits fewer emissions. There are two types of EGR valves; a vacuum-operated and an electronically controlled EGR valve. A vacuum-operated EGR valve is usually only found in older vehicles. It is a straightforward system which utilises a vacuum to switch the EGR valve from closed to open.
Why does my engine make a knocking noise when the EGR is closed?
Knocking noises from the engine can be caused if the EGR is constantly closed. This is because at low rpm the fuel ignites early when it meets the high temperature. Detonations are also common as a second ignition can occur after the normal ignition.