Important Facts You Need to Know About Brake Booster
Do you ever stop and wonder why it's so easy to stop your vehicle? Well, if you did, then you probably know that you have a lot to thank your vehicle's brake booster for. Located at the back of the engine compartment on the driver's side, the brake booster is a black canister that contains a valve a diaphragm. As you step on the brake pedal, a valve in the canister opens to allow high-pressure air in. The increased pressure allows the rod connected to the brake pedal to push on the master cylinder more easily. The brake booster amplifies foot pressure applied to the brake pedal so that the amount of foot pressure required to stop even the biggest vehicle is minimal. So if you're finding it hard to activate your vehicle's brakes, you might need a new brake booster. Luckily, you are now at
Brake Boosters: Your Two Main Options
A brake booster's main function is to intensify the pressure that you put on the pedal for the whole braking system to work until it stops the car. Basically, its job starts the moment you step on the brake pedal. Now, if you notice that the pedal depresses all the way to the floor with little or no resistance when you step on it, chances are you have a deteriorating brake booster. Replace it right away. Here, check out what your two main options are:
Vacuum brake booster
In essence, this type of booster uses air pressure. Inside a booster are two chambers that are divided by a diaphragm. When you're driving the car and you're stepping on the gas pedal, these chambers are clear of air because the vacuum sucks everything out. By the time you step on the brake pedal, you activate the valve that allows air outside the engine to enter the chambers. The harder you step on the pedal, the more air pressure you put to the chambers.
So, what are the pros and cons of this type? Well, the advantage of this is that in case your car stalls and engine fails, this can still work. The valve can still ensure that air only comes in when you step on the pedal. However, you have to really push the pedal harder if you want it to work.
Hydraulic brake booster
This mechanism works best in diesel-powered engines. Inside these engines, there is a steering pump that generates fluid pressure from the liquid that circulates around it. All of this air pressure is stored in the accumulator. When you step on the brake pedal, air pressure is released.
As for its advantage, it's actually more commonly used these days since modern cars use this technology. Its braking force is also stronger, and it can generate pressure ranging from 1,000 to 2,000psi. However, you have to keep in mind that this one relies so much on power steering and uses up a lot of electric energy in making the brakes work. Because the system works that way, there is a tendency for this booster to decrease horsepower.