What Are the Most Common Exhaust Problems?

The exhaust system comprises many pipes that carry gasses away from the engine to the outside of your car. Before the engine byproducts are released into the atmosphere, the exhaust also changes the gasses to make them less harmful; and contribute less to pollution. When your exhaust works the way it should, your engine will most likely run well and efficiently.

The main components of the vehicle’s exhaust system include the manifold, sensors, catalytic converter, resonator, muffler, and tailpipe. When one of these isn’t doing what they are supposed to, it can put you and your engine in danger. Here are some signs that indicate you may have an exhaust problem on your hands:

  • The unusual smell of gasses inside the vehicle cabin
  • Increased fuel consumption
  • Loud engine noises, especially during acceleration
  • Decreased engine performance

Common Exhaust Problems


Since most of the parts we mentioned above are made of metals, rust is the number one enemy of your exhaust system. When moisture lingers, it can lead to rust spots, which eventually lead to exhaust leaks. Depending on where it occurs, it can leak into the cabin and have harmful effects. If rust is on your muffler, however, it will cause a noisy car ride instead.

Clogged or Missing Catalytic Converter

A blocked or stolen catalytic converter can cause significant problems because it is the component responsible for transforming harmful engine byproducts into safer gasses. As a result, your vehicle may fail an emissions test. In recent years, catalytic converter theft has risen significantly. So, be careful where you park.

Failing Oxygen Sensor

If your oxygen sensor is not functioning as it should, it can cause an imbalance in the fuel and air mixture in your vehicle. If more fuel ends up getting burned, then it can eventually lead to a converter clog. 

If you noticed one or more of the warning signs of an exhaust problem, please bring your vehicle to the professionals at Lawrenceville Auto Center. We can have your vehicle inspected and repaired in no time.