EGR System Maintenance: Preventing carbon buildup in heavy-duty engines

Here's a quick primer on taking care of a truck's exhaust gas recirculation system to improve a vehicle's emissions.
June 4, 2025
5 min read

Carbon buildup eventually occurs in diesel engines, especially in the exhaust gas recirculation (EGR) system. How should you tackle this issue, and what are the best ways to prevent it

Begin by understanding the functionality of EGR systems in diesel engines. These components are important for reducing emissions, and they use cooled exhaust gases to dilute the fresh oxygen reaching the combustion chamber. 

About the Author

Rose Morrison

Rose Morrison is the managing editor of Renovated. She is a skilled researcher and contributing writer for various industry publications. She specializes in fleet management, related software and sustainability. When not writing, Rose is keenly interested in environmental practices and better building. 

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