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.