If the brakes are hard, the brake pedal does not soften even though the vehicle is running for a while; there may be more than one reason. Brake pedal stiffness is a problem to be considered, and you should get technical support for this. Possible causes of a hard brake can be listed as follows:
If there is an unexpected and sudden hardening in the vehicle’s brake pedal, the problem here is most likely a brake booster problem. So, first, let's answer the question of what is the brake Booster:
The brake booster is a reinforcing part that increases the brake force approximately five times and softens the brake pedal. The answer to where the brake booster is located in the vehicle is as follows: When the engine hood is opened, it is positioned at the level of the steering wheel. In shape, it is defined as a large cylindrical black piece. The brake master cylinder is located in front of the brake booster, and the plastic brake fluid reservoir box is above the master cylinder. Brake booster failure is a common brake problem. When the brake booster fails, the servo can no longer support braking, but the brake system operates. In this case, the brake becomes stiff, and it becomes difficult to apply the brake.
Stop the vehicle and press and release the brakes. Repeat this several times. The brake should harden as you use the brakes with the engine not running. If there is no hardening, there is a brake servo malfunction.
The working brake system is essential for the vehicle to stop and slow down safely. So, how do brake systems in cars work? First of all, most of the brake systems used in automobiles today work with hydraulic brake systems. The liquid is used in this system. A special non-boiling liquid is used here. The higher the boiling point of brake fluid, the more “quality” it feels. Brake fluid absorbs moisture from the outside over time. This causes the boiling temperature to drop. For this reason, it is necessary to change the brake fluid at regular intervals. If the boiling temperature of the brake fluid drops, the brakes will not hold.
If there is a hardening in the brake pedal, the brake pads should be checked while searching for the reasons. It may be time to change the brake pads. In this case, service support is obtained, and brake pad replacement is provided.
The brake pedal can also become stiff when there is a problem with the brake hoses carrying the brake fluid. In other words, there may be a leak in the brake hoses. The problem is solved by changing the hoses.
If the car has hardening of the brakes, the brake fluid may also be low. The problem is solved when the hydraulic brake fluid is taken and added.