Mufflers are part of a car's exhaust system. A muffler reduces noise but also prevents exhaust from entering the passenger compartment of a car. Knowing when your muffler is broken warns a driver that exhaust may be an invisible but deadly passenger. A broken muffler can be diagnosed by the average driver if you know the symptoms.
Listen for rumbling or low pitched rhythmic sounds while your car is in operation. A broken muffler causes the car to create loud exhaust noise.
Notice random thumping or clunking noises. Noise caused by a broken muffler can be intermittent.
Inspect your muffler for holes or rust. Mufflers rust from the inside out; visible rust indicates holes are developing in your muffler.
Look for unusual exhaust smoke. Billowing smoke may indicate a broken muffler.
Watch water leaks occurring under the rear of the car. Leaks may indicate a hole in the muffler or loose pipes.
Consider a broken muffler as the culprit when your car slowly overheats. Problems in a car's exhaust system can affect engine performance.
