- Wheel Cylinders: The wheel cylinders located at each wheel are responsible for actuating the brake shoes or pads. A leak from a wheel cylinder can be evident by brake fluid leaking from the area around the wheel. Replacing a wheel cylinder involves removing the wheel and brake drum or rotor, disconnecting the brake line and removing the old cylinder.
- Brake Lines: Brake lines are the metal tubes that carry brake fluid from the master cylinder to the wheels. A leak can occur anywhere along the length of the brake line due to corrosion or damage. Replacing a brake line involves identifying the location of the leak, cutting and removing the damaged section, and installing a new brake line.
- Master Cylinder: The master cylinder is the main component of the brake system that generates hydraulic pressure when the brake pedal is depressed. A leak from the master cylinder can be indicated by a drop in the brake fluid level in the master cylinder reservoir or by brake fluid leaking from around the master cylinder. Replacing the master cylinder involves removing the old master cylinder, disconnecting the brake lines and installing a new master cylinder.
- Brake Booster: The brake booster is a vacuum-powered component that assists in applying braking force when the brake pedal is depressed. A leak in the brake booster can cause the brake pedal to feel spongy or require more effort to depress. While brake boosters can potentially develop leaks, it's not as common as the other components mentioned.
- Brake Hoses: Brake hoses connect the rigid brake lines to the movable parts of the suspension and wheels. These hoses can deteriorate over time and develop cracks, causing a leak.
To determine the exact source of the leak and the part that needs to be replaced, it's recommended to inspect the brake system visually for any visible signs of leakage, check the brake fluid level, and test the brake system for proper function. If you're not comfortable performing brake repairs yourself, it's best to consult with a qualified mechanic.