What’s Making Your Muffler Rattle? Here Are 3 Possible Causes
Your car’s muffler is an important part of your vehicle. As the name suggests, its job is to muffle the miniature explosions that occur inside the engine. In addition, it also keeps your vehicle fuel-efficient while reducing the exhaust emissions that escape into the atmosphere. Like any component in your car however, your muffler can be subject to wear and tear that lead to issues with it. One such issue is an extremely annoying (and potentially expensive) rattling sound.
A rattling muffler can be caused by numerous things. Here are three of the possible causes, along with your repair options.
1. Loose or damaged mounts and brackets
Mufflers are kept in place by rubber mounts and metal brackets. Exposure to the elements, along with the heat and vibration generated by the muffler itself, can cause these parts to deteriorate. When mounts and brackets become loose or damaged, your muffler can start shaking violently, causing it to collide with other metal parts in your undercarriage. If this issue isn’t repaired soon, you run the risk of having your muffler fall to ground and get dragged by your car.
Repair option/s – Confirm that the muffler’s mounts and brackets are the source of the rattling by getting under your car and checking their condition. Once confirmed, bring your car to your trusted service center to have any loose parts tightened and damage components replaced.
2. Internal debris
Objects from the road have an uncanny way of getting inside mufflers and exhaust systems. If the object is large enough, or if too many debris get into your exhaust system, rattling sounds may occur.
Repair option/s – Have a professional technician diagnose the issue and clear up your exhaust system of anything that’s causing noise.
Your muffler is made of metal, which means it’s subject to rust. Extensive rust can lead to holes in the exhaust system that cause rattling noises. The bigger these holes get, the louder your problem will be.
Repair option/s – There are repair shops that can patch up rust holes for you, but if you have the budget for it, you might as well replace your exhaust system with a brand new one.