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What is the egr valve for Chevrolet s10 pick-up truck?

The EGR valve (Exhaust Gas Recirculation valve) is a device used in internal combustion engines to reduce the emission of nitrogen oxides (NOx). It works by recirculating a portion of the exhaust gas back into the engine's intake manifold. This helps to lower the combustion temperature, which in turn reduces the formation of NOx.

The EGR valve is typically located near the exhaust manifold. It is controlled by a solenoid which opens and closes the valve to regulate the amount of exhaust gas that is recirculated.

The EGR valve can become clogged over time with carbon deposits. This can prevent the valve from opening and closing properly, which can lead to increased emissions. If you suspect that your EGR valve is clogged, you should have it cleaned or replaced.

Here are some of the symptoms of a clogged EGR valve:

* Increased emissions

* Rough idle

* Stalling

* Reduced fuel economy

* Check engine light on

If you experience any of these symptoms, you should have your EGR valve checked by a qualified mechanic.