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EGR valves

Geeman's Avatar

Join Date: Mar 2002
Posts: 113

09-03-04, 03:44 PM   #1  
EGR valves

Would a vehicle run very rough if the EGR valve is plugged up with carbon and do they get plug slowly or can it happen rather fast. Could I just clean it out or should I replace it with a new one if that is the problem?


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Desi501's Avatar

Join Date: Oct 2003
Posts: 2,207

09-03-04, 05:51 PM   #2  
They don't get plugged up with carbon but a chunk of carbon can get caught under the pintle and hold it open. That will give you a rough idle but smooth at cruise. Some types can be cleaned but we generally replace them. Since you didn't tell us anything about the vehicle, we don't know.

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