Why does it feel like scraping the chassis when braking?
2 Answers
The reasons for feeling like scraping the chassis when braking include: worn brake pads, loose chassis components, aging rubber parts of the chassis, lower arm failure, etc. Car owners can eliminate such abnormal noise by replacing brake pads, tightening chassis screws, or replacing rubber parts. Braking refers to the action of stopping or reducing the speed of running locomotives, vehicles, other means of transport, or machinery. The chassis refers to the combination of the transmission system, running gear, steering system, and braking system on a car, which supports and installs the car engine and its various components and assemblies, forming the overall shape of the car, bearing the engine power, and ensuring normal driving.
Last time I hit the brakes hard, I also encountered a similar situation, like the sound of the chassis scraping against a stone. Later, after checking, I found out there are mainly two reasons: one is small stones getting stuck between the brake disc and brake pads, especially after driving on gravel roads in the rain; the other is aging brake components, such as the spring clips holding the brake pads coming loose. I remember that time I got out to check if there were any stones stuck in the tire grooves, and when I took it to the repair shop and put it on the lift, it turned out the brake pad retaining clip on the left rear wheel had broken. The mechanic said if you encounter this situation, don't push your luck—addressing it promptly can both eliminate the noise and prevent damage to the brake disc.
