What should I do if the handbrake of the car is lowered, but the rear wheel is still locked?

There are many reasons for the handbrake line to freeze, the brake friction pad is frozen, the brake cylinder is broken, the brake pad is combined with water, and the handbrake thread is stuck. The maintenance cost of rear wheel locking generally needs 100 yuan, and in the case of not replacing parts, how much money is needed depends on what causes it.

1. The handbrake line freezes or the brake friction pad freezes.

When the weather is too cold and the temperature is too low, the skin of the handbrake will harden or there will be water that will freeze, so even if the handbrake is put down, the cable inside will not return to its place, and it will be dried in the sun or showered with boiling water. There is also the ice between the brake pads and the brake drum, which causes the two parts to be inseparable from each other, and they need to be poured with boiling water or gently knocked to separate them.

2. The brake cylinder is broken or the handbrake cable is rusty and stuck.

It may be that the brake cylinder does not return, you can use sandpaper to polish or add lubricating oil and butter to restore it, if it is the failure of the cylinder, it needs to be replaced. If the handbrake cable is rusty, it generally needs to be replaced, because the skin will be damaged after a long period of use, and it will rust.

Precautions for driving:

When driving, you need to pay attention to the distance between the front and rear vehicles, if the distance between the vehicles is relatively small, when there is an emergency, if the distance between the vehicles is relatively small, there will be rear-end collisions and other phenomena, if the distance between the vehicles is relatively large, you can prevent rear-end collisions and other phenomena.

When driving on the road, you need to pay attention to the distance from the front and rear vehicles, so that the car keeps a safe distance, provides time to react when emergencies occur, and needs to adjust your own psychological quality when driving.

It helps the driver to react in time, and the use of high beams helps the driver to observe the state of the vehicle in front of him, and it is best not to drive too fast when driving on the road. When driving, it is necessary to pay attention to reasonable control of vehicle speed and flexible and appropriate use of car lights.

Is the brake pad frozen, put the rust for a long time will also stick, loosen the throttle a few times to start to try, see if you can shake it off, if not, take a hammer on the brake disc in the rear tire to vibrate, pay attention not to hang down to the oil pipe, and the line.

There are two temporary solutions to car handbrake locking:

1. One is to force the start, slam the throttle, as long as the rear wheel moves, it will be fine;

2. The second is to remove the tires, take a hammer or the like according to the brake drum and knock it twice, so that the joint surface of the brake drum and the brake pad is loosened;

It should be that the brake pad spring is not returned, you can hang the reverse gear, try to reverse the car, if it doesn't work, find a repairman to adjust the brake clearance.

It should be a little faulty, it is best to report insurance, or let the door-to-door service of car repair.

The solution to car handbrake locking is as follows:1. One is to force the start, slam the throttle, as long as the rear wheel moves, it will be fine;

2. The second is to remove the tires, take a hammer or the like according to the brake drum and knock it twice, so that the joint surface of the brake drum and the brake pad is loosened;

3. There is no need to check anything, normal phenomena, as long as the response measures are appropriate, it can be avoided. First of all, after washing the car or raining the brake drum into the water, do not stop immediately, drive for a period of time and step on the brake to let the water evaporate or do not pull the handbrake when parking, manual gear hanging 1 gear, automatic gear hanging P gear, the car will never slip away. In this way, the brake drum does not contact with the brake pads, and it will not cause rust to die;

4. Finally, you have to go to the repair shop to check whether it is a problem with the brake oil, brake hose, brake pump or wheel hub.

Timely help for car 4S shop personnel or maintenance personnel to replace the car's handbrake line can solve the car tire locking situation, if it has not been solved, it is recommended to overhaul the car handbrake.

When the handbrake is released, the reason why the car tires are still locked is: the car's handbrake line does not return, resulting in the situation that the car tires are locked. There are also possible reasons for:

The brake cylinder of the car does not return, which can be repaired by sandpaper sanding and buttering, and if the cylinder itself is faulty, it is likely to be replaced directly. The brake pads freeze due to freezing, melt the ice with hot water, or gently tap the brake drum twice with a blunt object such as a hammer.

The rest of the car tire locking is described below:

The car without ABS is installed, if you press the brake pedal hard while driving, the wheel speed will decrease rapidly, when the braking force exceeds the friction between the wheel and the ground, the wheel will be locked, the wheel that is completely locked will make the friction between the tire and the ground decrease, and in serious cases, there will be dangerous phenomena such as side sliding, tail flicking and sharp turning, so as to prevent the vehicle from locking after stationary at night, such phenomena mostly occur in the vehicle with the rear wheel being a drum brake.

The friction pads are semi-metal-based brake pads, and the brake drum is cast iron, which is in the state of parking tension in the handbrake. The brake pads and brake drum are tightly attached to each other, and the metal iron is oxidized and corroded by water. The solution is to spray rust remover or sandpaper.

The brake is locked hand brake: it is to disassemble the brake inside and clean it to remove the dirt and then see if the brake line is rusty, at least change the brake line Foot brake: That's it, clean up the brake inside Look at the brake ** to oil Add some oil inside the brake strand don't oil it.

Washing the brake pads only removes carbon build-up from the surface, making it easier for the rear wheels to lock up. Locking shows that it is a good brake, just brake a little lighter when braking.

That can only be solved by dismantling and cleaning the rear brake disc.

If the handbrake device is connected to the rear wheel, it is normal to lock up after pulling the hand brake.

This is caused by the adhesion of the brake pads and brake discs, which needs to be repaired by a professional organization. Every car has a braking system, which is important for the car. The braking system is related to the driving stability and safety of the car.

The main components of the braking system include the true air booster cylinder, master cylinder, sub cylinder, brake pads and brake discs.

Powered by the TRUE air-assist pump, a device that allows the driver to easily press the brake pedal.

When the brake pedal is pressed, the master cylinder pushes the brake cylinder through the brake fluid, which pushes the brake pads to clamp the brake disc, slowing down the car.

The brake cylinder is what we call the brake caliper.

The brake fluid in the braking system needs to be changed regularly.

Brake fluid is a fluid that absorbs water easily. If the water content of the brake fluid is too high, the braking force will be reduced and the braking distance will be extended.

When the water content of the brake fluid reaches 3%, it needs to be replaced immediately.

When changing the brake fluid, the empty air in the air of the braking system line must be discharged, otherwise the braking force will be reduced and the braking distance will be extended.

When buying brake fluid, you must choose a big brand, and you must go to a professional institution or 4S shop to change the brake fluid.

Check the moisture content of the brake fluid at each service.