How can exhaust leaks be detected?

Exhaust leaks can be effectively detected through visual inspection and pressurization methods. During a visual inspection, a technician looks for signs of damage or wear in the exhaust system components such as cracks, loose connections, or rusted sections that might indicate a potential leak.

Pressurization involves applying a small amount of pressure to the exhaust system while the engine is off. If there are any leaks, smoke or air will escape from the faulty areas, making it easier to locate the source of the leak. This method is particularly helpful because it allows for comprehensive checking of the exhaust system under conditions that can simulate the exhaust flow.

The other methods listed, such as checking tire pressure or measuring engine temperature, do not relate to the detection of exhaust leaks. While a smoke machine can be a useful tool in identifying leaks, relying solely on it limits the inspection process, which is why visual inspection combined with pressurization is a more complete method.