How Anti-Lock Brakes Work

The ABS System Anti-lock brake pump and valves The theory behind anti-lock brakes is simple. A skidding wheel (where the tire contact patch is sliding...

How Anti-Lock Brakes Work

Anti-Lock Brake Types ­Anti-lock braking systems use different schemes depending on the type of brakes in use. We will refer to them by the number...

How Disc Brakes Work

Disc Brake Diagram Disc brake components HowStuffWorks Now let's put the parts together to see how disc brakes work as a whole. This diagram shows the...

How Power Brakes Work

If you've ever opened the hood of your car, you've probably seen the brake booster. It's the round, black cannister located at the...

How Power Brakes Work

The Vacuum Booster ­ ­The vacuum booster is a metal canister that contains a clever valve and a diaphragm. A rod going through the...

How Power Brakes Work

The Booster in Action ­ ­The vacuum booster is a very simple, elegant design. The device needs a vacuum source to operate. In gasoline-powered cars,...

How Power Brakes Work

Power Brake Diagram HowStuffWorks Now let's put the parts together to see how power brakes work as a whole. This diagram provides both a closeup...

How Disc Brakes Work

Self-Adjusting Brakes ­ ­The single-piston floating-caliper disc brake is self-centering and self-adjusting. The caliper is able to slide from side to side so it will move...

How Disc Brakes Work

Emergency Brakes Disc brake with parking brake ­ ­In cars with disc brakes on all four wheels, an emergency brake has to be actuated by...

How Disc Brakes Work

Servicing Your Brakes Disc brake pad Photo courtesy of a local Autozone store ­ ­The most common type of service required for brakes is changing the...

How Drum Brakes Work

Servicing Figure 9. Brake shoe Photo courtesy of a local AutoZone store ­The most common service required for drum brakes is changing the brake shoes. Some...

How Drum Brakes Work

Drum Brake Diagram ­ Now let's put it all together. The drum brake diagram below shows how all the parts of the brake work together. For...

How Disc Brakes Work

Disc Brake Basics Disc brake location Here is the location of the disc brakes in a car: The main components of a disc brake are:

How Drum Brakes Work

The Drum Brake Figure 4. Parts of a drum brake ­ ­ ­The dru­m brake may look complicated, and it can be pretty intimidating when you...

How Drum Brakes Work

Brake Adjuster Figure 6. Adjuster mechanism ­ ­For the drum brakes to function correctly, the brake shoes must remain close to the drum without touching...

How Drum Brakes Work

The Emergency Brake ­ The e­mergency brake on a car has to be actuated by a different power source than the primary braking system. The...

How Master Cylinders and Combination Valves Work

Brake TypesAnti-lock BrakesPower BrakesDrum BrakesDisc BrakesEmergency Brakes­T­o increase safety, most modern car brake systems are broken into two circuits, with two wheels on each...

How Master Cylinders and Combination Valves Work

The Master Cylinder Here is where you'll find the master cylinder:Brake Image Gallery Master cylinder location.  See more brake pictures. In the figure below, the plastic...

How Master Cylinders and Combination Valves Work

The Combination Valve You will find a combination valve on most cars with front disc brakes and rear drum brakes. Combination valve location The valve...