How to Tell if Brake Booster or Master Cylinder is Bad?
Are you facing a problem with the car brakes and finding it difficult, how to tell if brake booster or master cylinder is bad? Then, without wasting much of the time, look for the following symptoms in the brake system and follow the immediate maintenance tips for the respective part, which is running badly.
Symptoms: How to tell if Brake Booster or Master Cylinder is Bad
Brake Booster connecting the brake pedal and the master cylinder, is known to suppress the high fluid pressure by the use of vacuum stored in it. In fact, with this booster, the driver doesn’t have to exert extra pressure on the pedal, while stopping or reducing the speed of the vehicle.
Contrarily, the master cylinder found in every modern car today begins to operate when the brake pedal is pressed. It pushes the fluid from the reservoirs to the lines in the braking system, which exerts pressure on the brakes. And finally, this pressure slows down the car or causes it to halt.
Now, after comprehending the basic meaning and functioning of these components, let’s learn how to tell if brake booster or master cylinder is bad?
1. Symptoms of a Faulty Brake Booster
Vehicle Stops at a Longer Distance
When the air bubbles enter the brake lines via the master cylinder, it reduces the pressure that causes the brake to apply very softly. This situation immediately calls for the inspection of the valve (responsible for removing the excess air bubbles inside the system). Or else, the problem of vehicle stopping at a longer distance, after the brake is applied, would continue.
Needs to Apply More Force on the Brake Pedal
The check valve is responsible for controlling the pressure inside the master cylinder. If this valve starts creating a problem then, it turns the soft and smooth pedal into the aggressive and hard brake pedal. So, whenever it gets difficult to engage the brake pedal, seek its inspection from the certified mechanic.
Stalling the Engine
When the diaphragm inside the brake booster fails, it allows the excess vacuum to enter the system from the engine. As a result, when the brake is pressed, the engine stalls, which can later cause issues that, are more serious.
Therefore, before you encounter any event of a brake failure, it is better to take your vehicle to the nearest trained professional.
2. Symptoms of a Bad Master Cylinder
Abnormal Clutch Pedal Behavior
If you have to exert extra pressure on the brake pedal then, there are chances that the master cylinder has the air inside them, which is further causing leakage of fluid.
Or, if the brake pedal is depressing itself then, this means that the heated brake fluid is not able to expand. Because of which, it causes extra pressure on the brake lines.
Worn Out Master Cylinder Seals
The rubber seal on the master cylinder wears out with the time. And, if these seals are not replaced timely, they may contaminate the brake fluid. Thus, causing the pedal to get soft and doughy or slowly sinking to the floor.
After knowing how to tell if brake booster or master cylinder is bad, it is the responsibility of the driver to keep a check on the brake system of the car. And in case, you locate any of the above symptoms with your car, it’s better to take it to the expert mechanics.