What is an EGR Valve?💨🔧🛠️👇 EGR stands for Exhaust Gas Recirculation. It’s a part of the emission control system in petrol and diesel engines. Purpose: Reduce nitrogen oxide (NOx) emissions by recirculating some exhaust gases back into the intake manifold. --- ⚙️ How Does It Work? 1. The valve opens at certain engine conditions. 2. A controlled amount of exhaust gas mixes with fresh air-fuel mixture. 3. This lowers the combustion temperature. 4. Lower temperature → less NOx formation → cleane

So how does the EGR system actually work on a DD15? The DD15 uses a three-piece exhaust manifold, and the EGR passage is built directly into the center section of that manifold.When the EGR valve opens, a portion of exhaust gas is diverted through a hot pipe and into the EGR cooler. Inside the cooler, exhaust gas flows through internal tubes surrounded by engine coolant. The gas enters extremely hot and exits at a lower temperature before being routed back into the intake.It’s still hot — just c

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Clean car EGR valve | Entertainer boys