8 signs of damaged car brakes

(Baonghean.vn) - The car's brake system is damaged due to high pressure and temperature due to friction. However, brake failure cannot be observed but must be recognized through signs when operating the vehicle. Therefore, early detection of brake failure helps you use your vehicle more safely and effectively.

1. The car shakes when braking

This phenomenon is caused by uneven contact between the disc surface and the brake pads, unbalanced wheels, uneven wear of the brake pads or warping of the brake disc when braking.

If you detect such signs when braking, you need to quickly take your car to a garage to have the brake discs and brake system serviced, otherwise the consequences will be unpredictable when the brake system does not work effectively.

2. Brake pedal is not working properly

This is a warning sign of loss of brake pressure. The cause is due to the brake cylinder being pitted or scratched, causing the oil to return every time the brake is applied, or due to the oil hose being cracked, causing oil to leak. At this time, if the driver suddenly applies the brake, the hose is very easy to break, leading to the phenomenon of brake failure or brake failure.

3. Brakes feel heavy

Quality braking equipment, operating in the best condition, is often supported by vacuum assist, so the braking process will be very simple and easy, not causing any difficulty for the driver.

In the case of driving, when using the brake, you feel the brake pedal is heavy, indicating that the brake system on your car has a problem. The cause may be due to the brake vacuum booster being damaged, or the oil pipe being clogged, etc.

4. When braking, the car feels off balance.

Another common problem with drum brakes is the phenomenon of the vehicle swerving to one side when braking, caused by uneven braking force on the wheels, due to one of them being oily, uneven drum brake pad clearance, or locally clogged oil lines...

If you encounter this situation, you should take your car for repair, because prolonged operation will cause the car to easily flip in situations of sudden braking at high speed, or cornering...

5. Brake all the way but the car still won't stop

This "disease" is often related to drum brakes, the cause is due to the master cylinder piston being bent, dry oil or air leaking in the brake system, brake pads being too worn... To handle this situation, you need to repair the cylinder piston, replace new brake pads or add drum brake fluid.

6. Brake operation is unstable

When you step on the brakes, they should react smoothly and steadily. Sometimes, the brake pedal is held for a long time, the braking force only appears for 1 second and then disappears, the cycle repeats regularly, maybe the brake pads or brake discs are damaged.

In this case, the brake disc needs to be replaced. It is recommended to replace each pair, front or rear, at the same time, avoid replacing only one side.

7. Brake does not release (brake lock)

Normally, the brake will automatically release when there is no force applied to the pedal, but when the brake does not release, it means that the pull spring or return spring at the brake pads is damaged, the wheel cylinder is jammed, the master cylinder is damaged or the brake battery is dry.

The brake not releasing can also be due to the driver's incorrect operation, such as incorrect brake pedal travel, incorrect handbrake adjustment, etc. Therefore, "inexperienced" drivers should know some tips for safe braking.

8. Squeaking noise coming from the brake mechanism

A squealing noise that occurs regularly when you apply the brakes is a sign that the brake pads are worn and need to be replaced. This is a safety measure provided by the manufacturer.

If the noise is not loud or continuous, dirt or debris may have entered the brake mechanism. This phenomenon will disappear after the brake mechanism is cleaned.

Some other causes are poor quality brake pads, incorrect brake shoes, broken springs, non-concentric brake shoes...

Ngoc Anh

(Synthetic)