How to install EGR Valve and Tube Chevrolet Chevy Equinox Pontiac Torrentby MusiCar Network   6 years ago

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Installation and instructions on how to install an exhaust gas recirculation (EGR) 2005, 2006, 2007, 2009. Chevy Chevrolet Equinox, Pontiac Torrent , servicing the engine light, how to fix the service engine light, car repair. Next up how to tune up a Chevy Equinox, HOw to tune up a Dodge Stratus R/T, How to install a steering wheel, how to change a thermostat. Also up how to do your own diagnostic! **SUBSCRIBE**
In internal combustion engines, exhaust gas recirculation (EGR) is a nitrogen oxide (NOx) emissions reduction technique used in petrol/gasoline and diesel engines. EGR works by recirculating a portion of an engine's exhaust gas back to the engine cylinders. In a gasoline engine, this inert exhaust displaces the amount of combustible matter in the cylinder. In a diesel engine, the exhaust gas replaces some of the excess oxygen in the pre-combustion mixture.[1] Because NOx forms primarily when a mixture of nitrogen and oxygen is subjected to high temperature, the lower combustion chamber temperatures caused by EGR reduces the amount of NOx the combustion generates (though at some loss of engine efficiency).[2] Gasses re-introduced from EGR systems will also contain near equilibrium concentrations of NOx and CO; the small fraction initially within the combustion chamber inhibits the total net production of these and other pollutants when sampled on a time average. Most modern engines now require exhaust gas recirculation to meet emissions standards. Car repair for beginners

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