What are the reasons for incomplete brake return?

[OLeila]

The reasons for incomplete brake return are: 1. Aging of the brake pedal, causing the pedal's spring to loosen or the screws to loosen; 2. Low pressure in the brake pump, blockage in the brake system management, or air leakage in the booster drum; 3. Lack of brake fluid. In this case, it is necessary to promptly check the brake fluid and replace or replenish it in time. The brake is a mechanical braking device that can slow down the speed of the vehicle, also known as a decelerator. The car's brake pedal is located under the steering wheel. Pressing the brake pedal causes the brake lever linkage to be pressurized and transmitted to the brake shoes on the brake drum, which then clamp the brake disc, slowing down or stopping the vehicle. Braking is achieved through intense friction between the brake shoes and the brake drum.

[TylerDella]

I've been driving for many years and often encounter issues with brakes not fully retracting, especially after driving in humid areas where the caliper pistons rust or get stuck with dirt, preventing them from retracting. Additionally, aged or thickened brake fluid, or the presence of air bubbles, can cause poor pressure transmission. Leaks or blockages in the brake lines can also drag the wheels. I remember one time when the brake discs overheated and smoked, increasing fuel consumption and nearly causing an accident. During regular maintenance, it's important to have the technician check the caliper lubrication and clean the brake lines. When washing the car, pay attention to removing dust to prevent buildup. In short, early detection and treatment can help avoid more serious problems.

[VanJustin]

As an automotive expert, I believe most brake retraction issues stem from caliper component seizure or aging piston seal rings causing retraction difficulties. Brake fluid contamination or degradation leads to insufficient hydraulic system backpressure; vacuum booster leaks may also affect retraction force. Unrepaired issues cause excessive pad wear, fuel consumption spikes, and potential accidents. For DIYers: After parking, gently push the vehicle to check for drag or feel brake disc temperature - if excessively hot, immediately visit a shop for fluid replacement and guide pin lubrication while maintaining safe driving habits.

[MacRafael]

As an office worker who commutes by car, I'm troubled by poor brake release which causes wheel dragging, wasting fuel and posing dangers. It's often due to rusted brake pads or calipers sticking, especially after driving in the rain without proper treatment. Last year I had to repair this issue when the piston corroded and seized. Regular maintenance can prevent this - cleaning the brake area during car washes and frequently applying brakes to dry them after rain are simple habits that save time and money. If you notice slow pedal return, don't delay - seek professional help immediately.