What Causes Abnormal Noises from the Chassis When Braking?

1 Answers
AniyahFitz
07/30/25 2:11am
There are two main reasons for abnormal noises from the chassis when braking: 1. ABS system operation sound: The ABS system works in a cyclic process of locking and releasing, which keeps the car in a state of near-lock rolling. When the car brakes suddenly, the ABS activates, resulting in abnormal noises, which are normal operational sounds. 2. Brake system failure or loose chassis components: If the driver hears noises not from the chassis but from the connection between the transmission and gear, this indicates an electronic linkage between the brake system and the transmission. When braking, the transmission solenoid valve opens, causing abnormal noises, which can be eliminated by shifting to the correct gear. If the chassis noise persists, it is likely due to a brake system malfunction or a loose component in the chassis, requiring immediate repair.
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