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Why do brakes stay on after pedal is released?

There are a few reasons why brakes may stay on after the pedal is released. Here are a few possibilities:

1. Brake Fluid Leak: If there is a leak in the brake fluid lines, it can cause a loss of pressure and prevent the brakes from releasing properly. Check for any leaks or damage to the brake lines.

2. Master Cylinder Issues: The master cylinder is responsible for generating the pressure needed to activate the brakes. If there is an issue with the master cylinder, such as a faulty seal or internal damage, it can cause the brakes to stick.

3. Caliper Problems: The brake calipers house the pistons that press the brake pads against the rotors. If there is a problem with the calipers, such as a seized piston or a damaged seal, it can cause the brakes to remain engaged.

4. Sticking Brake Pads: In some cases, the brake pads may become stuck to the rotors, preventing them from releasing properly. This can be due to excessive heat, corrosion, or a buildup of brake dust.

5. Incorrect Brake Adjustments: If the brakes were recently serviced or adjusted, it's possible that they may not have been properly adjusted, leading to the brakes staying on.

If you experience brakes that stay on after releasing the pedal, it is important to have them inspected by a qualified mechanic to diagnose and fix the underlying issue. Ignoring persistent brake problems can compromise your safety and the safety of others on the road.