How to Tell if the Exhaust Pipe is Leaking?
2 Answers
Exhaust pipe leaks can be identified by the sound of the exhaust pipe. If there is a leak, the sound is usually louder. The car exhaust pipe is installed between the engine exhaust manifold and the muffler, connecting the exhaust system. It not only reduces vibration and noise but also extends the life of the exhaust muffler system. During driving, if the engine produces noticeable noise that gradually increases and turns into exhaust noise, it is likely due to an exhaust pipe leak. During inspection, you can replace the exhaust pipe sealing ring, tighten the fixing bolts, and check or replace the exhaust pipe and muffler. The exhaust pipe is part of the engine exhaust system, which mainly includes the exhaust manifold, exhaust pipe, and muffler.
After driving for so many years, I can always detect early signs of exhaust pipe leaks. Symptoms include a continuous hissing or popping sound under the car after starting the engine, especially more noticeable when accelerating uphill; opening the window also allows a pungent gasoline smell to drift into the car. This odor is not only nauseating but may also let harmful gases seep into the cabin, posing health risks. Once during a long trip, my fuel consumption inexplicably skyrocketed, and upon inspection, I found a small rust hole in the exhaust pipe—applying soapy water and starting the engine revealed bubbles confirming the leak. Ignoring the leak can reduce engine efficiency, drastically increase fuel consumption, and even damage other components. So, if you spot an issue, get it repaired immediately—don't lose big for small gains.
