What are the symptoms of a faulty truck brake master cylinder?
1 Answers
Truck brake master cylinder symptoms are as follows: 1. Brake pedal does not return: The cause of this issue may be oil leakage in the master cylinder or wheel cylinder, or a malfunction in the master cylinder or wheel cylinder causing the pedal to sink. Additionally, it could be due to wear, lack of lubrication, or damage in one of the axle bearings. If the bearing is damaged, the entire vehicle may become uncoordinated. The brake pads may be in an incorrect position, causing the brake pedal not to return. 2. Brakes become too hard or too soft: It is normal for the brake pedal to feel hard when the vehicle is stationary because the vacuum booster is not yet operational. If the pedal remains hard after the vehicle is started, it may indicate a vacuum hose leak or a faulty vacuum pump. If the brakes feel soft while driving, this suggests there is air in the brake fluid lines or a brake fluid leak, requiring immediate roadside stopping and professional repair. 3. Steering wheel pulls to one side during braking: While braking, due to the high speed of the brake disc, it may be difficult to notice uneven braking. However, as the vehicle comes to a stop, the difference becomes more apparent. The wheel on the faster side stops first, causing the steering wheel to pull. This occurs due to an imbalance in the brake system's wheel cylinders acting on the brake pads, and the wheel cylinder should be replaced promptly.
