Brake Pedal Hits the Floor What to Do and Why

A sinking brake pedal slowly drops to the floor as you exert the same pressure. You'll be able to feel the pedal sinking when you're stopped at a stoplight or ... With the engine off, pump the brake pedal a few times, then hold down. Start car. If it drops to the floor when started, most likely a bad ... My braking pedal sometimes goes to floor during driving, mainly when I'm in a traffic jam and using the brakes actively. If you are positive that there are no leaks (be sure to check all lines, wheel cylinders etc) then the most likely cause will be your master cylinder bypassing ... The pedal going down SOME when starting the engine with a power brake booster is normal, but the booster is making the air-in-the-system problem worse. The pedal went to the floor. It was the scariest thing. The technician didn't bleed the brakes after he swapped the master. He said he was going ... After replacing the vacuum booster, master cylinder, brake fluid and front calipers, the brake pedal still goes to the floor. What else can I try? The pedal going to the floor could mean the master cylinder is failing or failed. Did you open the break lines while replacing the brakes? If the pedal is solid after exhausting the servo system and with the engine stopped - there is no air trapped in the system. It's normal for the ... A lack of hydraulic pressure in the braking system is the most common cause, as well as worn brake components that require more brake pedal travel to apply ...