I have a 2004 Ford Mondeo 2.0 TDCI. I have heard about something called the EGR (Exhaust-Gas Recirculation) that can get clogged up and need cleaning. Is this right? Also, where would I find this on the engine?

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    EGR can build up deposits coming from exhaust gas in your intake duct, which in turn can cause a restriction in airflow. I don't see the relation between that and powerloss specifically in lower gears though. The overall performance of the engine would be less, i would think. – Bart Oct 28 '16 at 11:13

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