The most common culprit is carbon buildup on the throttle body, exhaust gas recirculation (EGR) valve and idle air control (IAC) valve. Here well show you how to clean an EGR valve. This simple ...

the EGR valve operates based on your current driving conditions. When you start your car and when you're driving at high speeds or accelerating, the engine requires more clean air to run smoothly.

For Cummins truck owners, engine dependability and performance are crucial. The EGR system along with other emissions control maintenance systems comes with performance and maintenance problems.