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What are the symptoms of a bad brake master cylinder?

1 Answers

SanBrady

07/30/25 12:01am

The manifestations of a faulty brake master cylinder are as follows: 1. Component failure: Oil leakage occurs at the connection between the brake master cylinder and the vacuum booster or at the limit screw, poor or ineffective braking after fully depressing the brake pedal, and a soft feeling when pressing the brake pedal. 2. Brake failure: The vehicle pulls to one side after braking, sudden brake failure, the brake pedal not returning or returning slowly. Relevant information is as follows: 1. Definition: The brake master cylinder, also known as the "brake main cylinder" or "brake master cylinder", is the main coordinating component of the vehicle's braking system. 2. Classification: Depending on the vehicle, it is divided into two types: air brake master cylinders and hydraulic brake master cylinders. Generally, passenger cars mostly use hydraulic brake master cylinders, while commercial vehicles (such as trucks, buses, tractors, etc.) usually use air brake master cylinders.

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