Where should you look for signs of leaks in the exhaust system?

The correct choice is to look for signs of leaks in the gaskets and expansion joints of the exhaust system. Gaskets and expansion joints are critical components that help seal connections throughout the exhaust system, preventing exhaust gases from escaping. Over time, these parts can degrade due to heat, vibration, and exposure to corrosive substances, making them particularly prone to leaks.

Inspecting gaskets for cracks or deterioration and checking expansion joints for signs of wear is essential for maintaining system integrity and performance. A leak in these areas can lead to decreased engine efficiency, increased emissions, and potentially dangerous exhaust fumes entering the engine compartment or passenger cabin.

While other areas such as the fuel lines, intake manifold, and turbocharger connections are important in overall engine performance and system functionality, they are not the primary focus for exhaust leaks specifically. The intake manifold deals with air and fuel mixture, while the turbocharger connections are more involved with the boost pressure side of the system. Fuel lines carry fuel and are not part of the exhaust system directly. Therefore, looking for leaks specifically in gaskets and expansion joints is the most relevant focus when dealing with exhaust systems.