Experts advise bleeding the braking system for maintaining the long life of your brakes. Keeping this in mind, people perform bleeding on the braking system of the vehicle. But what if they notice brakes still soft after bleeding? It would be annoying and increase the risk of the car. Therefore, to deal with such situations, we first need to know the exact cause behind the problem. For this, our article will guide you to the utmost while coping with the situation. It would help you out in all the possible causes, so let’s begin with the topic.
What Do You Mean By Bleeding Of Brakes?
The brake fluid replacement often results in bleeding of brakes. It is a common procedure which involves the removing of air from the hydraulic brake system on your vehicle.
The bleeding of brakes is necessary, while the brake fluid is incompressible liquid and air bubbles are compressible gases. The presence of both in the system greatly reduce the hydraulic pressure which is developed.
Why Are Brakes Still Soft After Bleeding?
There are several reasons responsible for brakes to feel spongy even after bleeding them. The condition or issue is pretty severe, so ignorance related to it cannot be tolerated, resulting in an accident if neglected.
So, if your experience such cases or situation in your vehicle, we would recommend you to work on it. Because as soon as you work on the problem, you’ll get the desired solution within no time.
The possible reasons or causes responsible for these situations are as follows:
1. Air In The Brake Lines
It is the most common cause of spongy or soft brakes. All this very often seen in vehicles. In this case, the air gets in the brake line and properly prevents the flow of brake fluid. All this results in the brake feeling spongy even after bleeding.
If you face any such situations, it is better that you either change or flush the brake fluid again. Clean the brakes and fill the fresh fluid to protect the other brakes component from being damaged, like the master cylinder and anti-lock breaks system (ABS).
2. Contaminated Brake Fluid
Break fluid is like the other oils in the engine, acting as a lubricant with additional impacts in the vehicle. It is better to change the brake fluid in a couple of years to enjoy a smooth ride and a perfect braking system.
Sometimes, people do not change the brake fluid, resulting in moisture absorption into the system. All this would change the compression characteristics of the liquid and thus increase the sponginess of the brake.
To avoid the situation, you need to clean the breaks system of the vehicle properly.
3. Worn Master Cylinder
The master cylinder is one of the essential components of the breaks system and performs multiple functions to provide a smooth drive. The variety of procedures performed by the cylinder includes: it holds the brake fluid, generate hydraulic pressure, and feed it to the front and rear brakes.
There are conditions in which the master cylinder is worn out or breaks down, thus developing a leak—the leaks classified in two ways that include external brake fluid and internal brake fluid. Failure in any of the liquids will cause a loss in hydraulic pressure, and soon brakes will become soft.
4. Adjustment Of Rear Brake Shoes
The adjustment of rear brake shoes is mandatory for the proper functioning of the brakes system. If these rear brake shoes wear out or damaged by any means, their purpose or function is altered and failed to provide the required service.
It is better to use the parking brakes instead of these rear brake shoes. The parking brakes provide the automatic adjustment of the brake shoes in your vehicle.
5. Component Failure
It is most often related to the master cylinder and includes other components like wheel cylinders and callipers. In the master cylinder, the fault lies in the internal seals, i.e., the internal seals failed to fulfil the required demand of the vehicle.
Bleeding the brakes solve the problem, but here, as the brakes are soft even after bleeding, then replacement is the best option to deal with the situation.
6. Booster Pin Gap
The booster pin gap lies between the brake booster that goes into the back of the master cylinder. All this gives the feeling of soft brakes and hence, initiate the problem.
The case is treated best by visiting the garage and perform the required service with the known person.
How To Fix The Spongy Brakes?
Generally, in such cases, we advise you to visit the mechanic as soon as possible. As they best handle these situations. Although, till then, we recommend you to try the following methods listed below to deal with the situation.
1. Pump The Pedal
As we know, the brakes are spongy due to one or the other reason. So, the best reaction to deal with the situation is to rapidly and continuously pump the brake pedal with your foot to counteract the problem.
After trying this method, we also suggest you go through the maintenance tip of the book provided with your vehicle. Also, visit the mechanic to get the proper and permanent fixation.
2. Look For A Leak And Then Fix It
We would suggest you check for the leak in the vehicle. Look behind the car’s wheel or check the master cylinder if it leaks.
If you do not find any leak in the vehicle related to anything and after trying a lot, you got nothing. Then, we would recommend you visit the mechanic and dictate all methods you try to deal with the situation and the problem you are facing in the vehicle.
3. Bleed Your Brakes Once More
Bleeding removes the excess air that entered your system. It also provides you with smooth and lubricated services.
There are chances that your previous bleeding of brakes does not go well, and thus you face these situations. So, this time, make sure to install the required things properly and the perfect procedure to avoid any difficulty in the future.
In the end, we would only recommend you to please do these procedures in the garage only by a well-trained mechanic.
We hope that now, whenever your vehicle’s brakes still soft after bleeding, you’ll able to deal with the situation properly and find the desired solution.
If your doubts regarding the topic persist, comment below in the comment section. Soon we’ll answer all your questions.