Responsible for removing the exhaust gases produced during the combustion process and directing them through the tailpipe, exhaust systems are not only important for improving engine performance, but they also help reduce the number of harmful pollutants emitted into the atmosphere, reduce the noise levels of your engine, and can even boost engine power and fuel efficiency..
Exhaust Systems Explained
In recent years, the exhaust system has evolved from its original function of expelling toxic gases and pollutants produced by the engine's combustion process to emission control and reduction.
The exhaust process begins with the exhaust manifold, a component that sucks up toxic gases from the engine's cylinder and routes it through the exhaust pipe and all the parts that control emissions. In most cases, a complete exhaust system includes an exhaust gas recirculation (EGR) system, a diesel particulate filter (DPF), a selective catalytic reduction (SCR) catalyst, and a diesel oxidation catalyst (DOC)—although they all wear different hats, they're used to reduce emissions or convert harmful pollutants into compounds like water, nitrogen, and carbon dioxide.
Problems & Symptoms of a Malfunctioning Exhaust System
Part of a truck driver's job is to ensure their exhaust system is in good working condition before a state emissions test. If you ever notice loud and unusual sounds (hissing, popping, or rattling) coming from your tailpipe, unpleasant odors (sulfur or a burning smell) in your cabin, or a decrease in engine performance, you're probably experiencing problems with the exhaust system.
One of the most common issues is a clogged or damaged DOC or SCR catalyst, causing a reduction in engine performance and increased exhaust emissions. Exhaust leaks can also occur due to damaged pipes, resulting in higher noise emissions and potential exposure to harmful gases.
But without a doubt, the most common problem with exhaust systems is corrosion and rust, particularly in harsh weather conditions. Since your truck's exhaust system is constantly exposed to fluctuating heat and moisture, it is a prime candidate for rust. And with rust comes holes, cracks, and empty pockets.
Are you experiencing issues with your truck's exhaust system? Don't wait until it's too late—come to Duran & Sons Diesel in El Paso, Texas, for quick and reliable exhaust system repairs. We use high-quality parts and equipment to ensure your truck runs smoothly and efficiently.