Brake Pedal's Descent into Darkness Unraveling the Mysteries of Floor Plunges

If your pedal is going to the floor, the fluid HAS to be going somewhere. It either is leaking from a wheel cylinder, or brake line, or there is ... The symptom sounds like a master cylinder(mc) seal is bad. If you don't have a puddle(a leak) this is the only thing I can think of to help. if your pedal is going to the floor, make sure the master cylinder is good. Any vehicle after 10 years is likely to have a bad master cylinder. The only way fluid levels decreases is by worn brakes (taking more fluid to push worn pads further to make contact puts the fluid in the caliper ... Depress the brake pedal several times slowly. If the pedal goes down farther the first time but gradually rises after the second or third ... The pedal goes basically all the way to the floor on the first pump, when I pump the brakes again the pedal rises, feels very firm and the truck stops well. Brake pedal to the floor is a classic symptom of master cylinder failure. The fluid simply bypasses the seals on the piston in the master cylinder. My braking pedal sometimes goes to floor during driving, mainly when I'm in a traffic jam and using the brakes actively. This could indicate an unevenly worn rotor, dirty brake fluid or contamination of the fluid by moisture. You can solve such a problem with a relatively ... Start at the master cylinder, loosening the brake lines and bleeding from there. Pump it up, hold it down, bleed. If there's air there, it takes a while.