What is a common sign of a leaking exhaust system?

A common sign of a leaking exhaust system is loud noises or a noticeable drop in engine performance. When there is a leak in the exhaust system, it can result in excessive noise, often described as a loud rumble or hissing sound due to escaping gases. This leak can also disrupt the normal backpressure that the engine requires for optimal performance, leading to a decrease in engine power and efficiency.

This effect can often be felt during acceleration, where the engine may struggle to reach the desired power or response, indicating that the exhaust gas is not being efficiently expelled. In addition to performance issues, a leak can also allow harmful exhaust fumes to enter the cabin of the vehicle, posing health risks to the driver and passengers.

Understanding this relationship between the exhaust system and engine performance helps technicians diagnose issues effectively and maintain safe and efficient vehicle operation.