That small puddle could mean complete brake failure is coming. Learn how to detect brake fluid leaks before they become deadly emergencies, with warning signs Sioux Falls drivers can't afford to ignore.
- 90% of leaks occur in hidden areas
- Fluid absorbs moisture, corroding parts
- Just 10% loss doubles stopping distance
5 Hidden Signs of a Brake Fluid Leak
The Paper Towel Test
How to check: Wipe master cylinder and lines - yellow/green stains mean leaks
Wet Spots Under Car
Identify fluid: Brake fluid feels oily and smells slightly fishy (unlike coolant or oil)
Pedal Sinks Slowly
Test: Hold pressure at stoplight - pedal shouldn't creep down more than 1/2 inch
Disappearing Fluid
Check: Reservoir level drops between services (normal loss is zero)
ABS Light + Brake Light
Meaning: Pressure loss detected by sensors (below 8psi)
Where Leaks Happen (And Why They're Deadly)
Master Cylinder
Risk: Total brake failure within miles
Sign: Fluid on firewall under dash (check clutch pedal area too)
Sioux Falls Tip: Common after -20°F winters
Wheel Cylinders
Risk: One-sided braking causing spins
Sign: Wet backing plates or dripping from drum
Our Fix: Upgrade to stainless steel pistons
Bleeder Valves
Risk: Air entering system causing sponginess
Sign: Crusty deposits around valve stems
Prevention: Annual fluid flushes
Brake Lines
Risk: Sudden rupture under pressure
Sign: Dripping along frame or rust bubbles
Our Specialty: Same-day line replacement
Sioux Falls Repair Solutions
Brake Fluid Doesn't Just "Disappear"
Every drop lost brings you closer to complete brake failure. Sioux Falls drivers: Don't risk it.
Free brake fluid moisture test with every service