The muffler is a vital part of your vehicle that draws gas from inside the engine. Small cracks or misaligned fittings can allow exhaust to blow back into the engine, dragging fuel efficiency down and even causing engine misfires. Below are a few common signs you may need muffler and exhaust repairs.

How to Tell Your Exhaust Needs to Be Repaired

1. Changes in Engine Volume

If the engine suddenly sounds much louder than it used to, the issue may actually be with the muffler. Car mufflers are designed to dampen the sound of the car, so holes or broken connections will often cause a dramatic change in noise levels. If your car has suddenly started roaring, even when it’s idling, the muffler may need to be repaired or replaced.

2. Noxious Fumes

The muffler and exhaust system is designed to direct gas away from the car, so you should never smell fumes in the passenger cabin. Muffler damage can force gas back up into the engine, but it can also allow potentially dangerous fumes to leak into your vehicle. These exhaust odors are potentially hazardous to your health, so they should be inspected by a mechanic as soon as possible.

3. Engine Misfires

The exhaust removes fumes and byproducts from the chambers after each combustion. Issues with the muffler could mean gas byproducts stay in the combustion chamber, which interferes with the balance of oxygen and fuel. This can cause backfires. In addition to reducing your fuel economy, backfires can cause even more damage to the muffler and exhaust system, or break seals inside the engine.

If your gas mileage is declining or your car is making strange noises, take it to the experts at Schaller Jacobson Collision and Automotive Repair. Their team has over 60 years of experience serving drivers throughout La Crosse, WI. They offer everything from collision repair to muffler and exhaust service. Visit their website for more on their auto repair services. To make an appointment, call (608) 788-2545.