Car brakes stuck - causes and solutions

Excessive brake pad wear

The first thing to mention is that the brake pads wear beyond the allowable limit, leading to the brake disc being worn out, making it thinner than the standard allowable thickness. This error is often due to the user being lazy to check and replace maintenance.

When the brake pads are too worn, the thin brake disc will cause the brake piston to be pushed beyond its limit, making it difficult to retract, leading to the phenomenon of locking on the drum or brake disc, creating brake lock.

If the car has this problem, you need to remove the wheel, remove the brake assembly, use a screwdriver to push the piston back to its original position, then bring it to a repair center.

Brake master cylinder is rusted.

The problem with the brake caliper stems from the rubber gasket covering it being torn or punctured. During operation, the brake caliper will rust and corrode. When braking, the brake piston will exert a large force on the brake caliper, however, because of the rust, the brake caliper cannot return to its original position, leading to a locked brake.

The way to fix this problem is to remove the pin and clean it, apply grease to lubricate it. At the same time, check the brake piston as well as the brake pads and brake discs. If the pin and rubber gasket are damaged, these parts need to be replaced immediately.

Deformed brake disc

External impact is also a common cause of brake lock. If the vehicle is hit many times, the brake disc will be deformed, rotate unevenly, and shake... at this time, the brake pads will be tightly pressed, causing the brake to lock. You need to take the vehicle for inspection and repair to avoid danger.

Small brake pedal

Inexperienced repair also makes the car susceptible to brake lock if the repairman adjusts the brake pedal amplitude too small, when using the brake pads continuously press against the brake drum or disc.causing brake lock.

The best way is to choose a reputable large garage to thoroughly handle this problem, because if left for a long time, it will cause the brake pads and discs to wear out.

Brake pads expand due to water leakage

During car washing or driving in the rain, water can get into the brake system, causing the brake pads to expand, the brake pedal to become small, so when braking, the brakes will feel locked.

To overcome this situation, after washing the car or crossing a flooded puddle, you need to lightly apply the brake to dry the brake pads, preventing water from entering the engine compartment. If you stop the car immediately after washing the car or crossing a flooded road, you should not pull the handbrake immediately.

The best way to handle this situation is to shift into reverse for manual transmission vehicles (or P for automatic transmission vehicles) and then back into forward, until the brake releases automatically.