The brake master cylinder is the first component in a vehicle’s braking system, activated by depressing the brake pedal. The pedal pushes a piston through this cylinder, forcing brake fluid ...

Use brake fluid test strips or a pen tester to measure brake fluid quality, condition and color. Old or contaminated brake ...

Air in the brake system can make your brake pedal feel spongy and vague. You should flush the fluid every two or three years, ...

pushes on the master cylinder's internal piston seals, pressurizing and forcing brake fluid into the brake lines, brake calipers and wheel cylinders. This causes the brake pads to press inward ...

Hydraulic clutches for manual transmissions use brake fluid to supply pressure to disengage the clutch from the engine. Pushing in the clutch pedal makes fluid flow from a master cylinder (or ...