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Exhaust Gas Recirculation Valve (EGR)

Exhaust Gas Recirculation (EGR) System:

The Exhaust Gas Recirculation (EGR) Valve is vital to your car’s emission controls. By circulating a small portion of exhaust back into the engine, the valve keeps huge amounts of unburned fuel from being released into the atmosphere.  Because these valves are recirculating hot exhaust gases back into the engine it is possible for them to become blocked with carbon in time and trigger a Check Engine Light to illuminate and for the engine to run poorly. There are times where the EGR ports in the intake manifold itself become plugged and we are often able to clean these effectively.

EGR Diagnostics and Repair:

To maintain your car’s efficiency, it’s important that the EGR valve is working properly. If the valve is blocked or malfunctioning, this can cause your engine to suffer. If your engine is idling roughly or accelerating poorly, ask your service advisor to take a look for the source of the problem. Cleaning the system is possible but once the valve fails your only option is to replace it. If ignored long enough, a car with a bad EGR valve will not pass emissions.

From a safety standpoint there’s a slight risk, because a failing EGR valve may cause you to stall in unwanted situations. From an environmental point of view, a failing valve will let harmful gases be released into the air.

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