What is checked during an inspection of the exhaust system?

During an inspection of the exhaust system, it is crucial to check for leaks, rust, and proper mounting. Leaks in the exhaust can lead to dangerous fumes entering the vehicle's cabin, which poses a significant health risk to the occupants. Rust, on the other hand, can compromise the structural integrity of the exhaust components, potentially leading to breakage or failure over time. Proper mounting ensures that the exhaust system is securely attached to the vehicle, preventing any excessive vibrations or movement that could damage connections or other components.

While sound levels and color of emissions can provide some insight into the exhaust system's performance, they are not the primary focus of a routine inspection. Fuel efficiency and noise may relate to the overall vehicle performance but are not specific indicators of exhaust system integrity. Engine temperature and fan operation are related to engine cooling rather than the exhaust system’s condition. Therefore, the focus on leaks, rust, and proper mounting during an inspection is essential for ensuring the exhaust system is functioning properly and safely.