How to Determine if the Brake Master Cylinder is Faulty?

1 Answers
BrielleLynn
07/29/25 8:10pm
Methods to determine if the brake master cylinder is faulty: 1. Soft brakes: When pressing the brake pedal, if the braking feels noticeably soft, it may indicate poor piston sealing in the master cylinder; 2. Sudden brake failure: This suggests severe oil leakage in either the master cylinder or the wheel cylinders, requiring immediate repair; 3. Brake pulling: If the vehicle pulls to one side and steering becomes difficult to control, it may be due to piston expansion in the master cylinder, necessitating prompt repair; 4. Brake pedal not returning or slow to return: Check for damage to components in the master cylinder or wheel cylinders. The brake master cylinder is a critical component of the vehicle's braking system. If any issues with the braking system are noticed during daily driving, it is advisable to visit a corresponding 4S shop or auto repair shop for inspection and repair.
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