What to Do If the Right Rear Wheel Brake Locks Up?
2 Answers
If the ABS is not installed and the brake pedal is pressed hard while driving, the wheel speed will rapidly decrease. When the braking force exceeds the friction force of the wheel, the wheel will lock up. By continuously monitoring the speed of each wheel through speed sensors installed on the wheels or drive shafts, the computer calculates the current wheel slip rate. A decision is made to increase or decrease the braking pressure, and the controller instructs the regulator to reduce the hydraulic pressure in the wheel's brake cylinder, thereby decreasing the braking torque. This process can occur 5 to 10 times per second, ensuring the wheel remains in a rotating state while maintaining maximum braking torque.
If the right rear wheel's brake is locked up, I've dealt with this issue many times. First, never force the car to drive, as it could cause tire wear or even a fire. Safely pull over to the side, engage the handbrake, and turn on the hazard lights. Then, check if the brake caliper is rusted and stuck—common in humid conditions. Lightly rev the engine a few times; sometimes this can loosen it. If that doesn't work, try gently tapping the caliper area with a rubber hammer, but be careful to avoid damaging any parts. After a temporary fix, immediately drive to a professional repair shop to replace the caliper or clean the piston—don't delay, or it might lock up completely next time. For regular maintenance, check the brake fluid level and caliper lubrication every six months to prevent similar issues. Always remember, safety comes first—a locked brake makes steering difficult and increases the risk of accidents.
