![]() The brakes are responsible for stopping your car when you press the pedal. READ MORE: How Much Does a Catalytic Converter Replacement Cost? 4. In fact, it’s one of the most expensive repairs your car may ever need, aside from an engine or transmission replacement. While it’s not a difficult job to perform, the part does cost a lot. To repair this rattling sound, you must replace the catalytic converter. Additionally, the Check Engine Light could come on, indicating there’s a problem with the emissions. If it is broken, it could create a rattling sound, especially while accelerating. Otherwise, an accident can break some of the structure. Over time, the catalytic converter can become less effective. Its main job is to control emissions by converting toxic gases into less hazardous products. The catalytic converter is a part that makes up the exhaust system. RELATED: How Much Does Car Suspension Repair Cost? 3. Don’t put off the replacement or other parts could start to fail or you can allow uneven wear to the tires. Some parts should be replaced in pairs, such as the shocks. In most cases, when a suspension part is worn out, it will need to be replaced. Otherwise, rattling and a rough ride could occur. When everything is working, you enjoy the ride. A suspension system can be made of shock absorbers, struts, sway bars, springs and bushings. The purpose of the suspension is to dampen the ride and absorb the imperfections. Under the vehicle, there is an interconnected system of suspension parts. RELATED: How Much Does it Cost to Replace an Exhaust System? 2. On the other end of the spectrum, you may have to replace a rusted part, which could require welding and a lot of work. Thankfully, the fix could be as simple as tightening a clamp or replacing a hanger. ![]() They’ve also been prone to rusting out, which would also create a rattling sound. Because they are made from thinner metal pieces, they can easily become loose. These parts are strategically placed around the piping, catalytic converter and muffler. The exhaust may also be suffering from a loose piece of heat shielding. It can also bang the underside of the vehicle when you hit a bump. If the tailpipe or muffler is loose, it will rattle around. It’s wise to look at the muffler and other parts that are visible first. There are many components that could be loose and cause the rattling noise. The exhaust on your car runs from the engine out the back end of the vehicle. Here is a more detailed list of the most common causes of rattling noises coming from under the car: 1. The most common causes of a rattling noise from under the vehicle are loose exhaust components, broken suspension, bad catalytic converter, brake problems, or the wheels such as a loose lug nut. Causes & Fixes of Rattling Noise Under the Vehicle Do you hear the rattle more while accelerating, braking or during idle? With this information, you can dig deeper into our possible causes. It also helps if you pay attention to when it happens. Thankfully, you can narrow down the options by figuring out if the rattling is coming from under the vehicle, under the hood or inside the car. To further narrow down the problem, you want to know where the rattle is coming from. That’s why it’s so difficult determining what might have gone wrong simply with this description. Conclusion Where’s the Rattling Noise Coming From?Īny part of your car that gets loose or breaks is capable of creating a rattling noise.
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