![Car is making a rattling sound on start up and acceleration, checked under the car and saw this. Anyone have any idea what it is? Is it serious enough to not drive Car is making a rattling sound on start up and acceleration, checked under the car and saw this. Anyone have any idea what it is? Is it serious enough to not drive](https://preview.redd.it/2302ds11e9n71.jpg?width=640&crop=smart&auto=webp&s=ab50bbe191fd4f7297e72fd05faefc6c632ed302)
Car is making a rattling sound on start up and acceleration, checked under the car and saw this. Anyone have any idea what it is? Is it serious enough to not drive
![Assessment of Squeak and Rattle noise of a car seat using 3D sound intensity measurements - Microflown Assessment of Squeak and Rattle noise of a car seat using 3D sound intensity measurements - Microflown](https://www.microflown.com/assets/uploads/Pictures/Measurements/_1000x1000_fit_center-center_none/squeak-and-rattle-noise-of-a-car-seat.png)
Assessment of Squeak and Rattle noise of a car seat using 3D sound intensity measurements - Microflown
![Sound quality evaluation of vehicle suspension shock absorber rattling noise based on the Wigner–Ville distribution - ScienceDirect Sound quality evaluation of vehicle suspension shock absorber rattling noise based on the Wigner–Ville distribution - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0003682X1500184X-gr1.jpg)