You may be able to adjust the pedal. You might also have air in the hydraulic line and need to get the air out.
It seems like there might be air in your brake system. You should try bleeding your brakes and filling it with fresh brake fluid.
Sounds like you have a problem with your brake light switch under the dash, mounted on your brake pedal metal arm assembly. I know if I get my head down near the brake pedal and push the pedal with my hand I can hear a loud click noise when the brake lights come on. I'm not a mechanic, but I've wondered if the brake fluid level is down in the master cylinder, does the brake pedal drop enough for the brake light switch to turn on the brake lights ?
Sounds like you may have moisture in the brake fluid. Have your brake fluid totally replaced. Your master cylinder may also be failing. Hold steady pressure on the brake pedal. If it very slowly goes down replace the master cylinder.
sounds like overheating of brake line, either from hot pavement, or cat converter. causes brake fluid to boil and loss of pedal.
Sounds like a blown brake line . Get under the car to see where the fluid has leaked out and that will answer your question.
It sounds like a problem with your brake light switch that is mounted on the metal arm of your brake pedal under your dash. I'm not a mechanic but I've wondered if the brake fluid level is low in the master cylinder in the engine compartment, does that allow the brake pedal to drop enough to allow the switch to turn on the brake lights ? I know that if I get my head down near the brake pedal, and push the pedal with my hand I can hear a loud click noise when the brake lights come on.
It probably means that you need to visit a mechanic. Soft brake pedal feel can mean that air has gotten into the fluid lines. There could be other issues like worn-out pads or rotors.
Sounds like a master cylinder.
Sounds like u need a new master cylinder, dont mess around with breaks, its better to be safe then sorry. When a master cylinder wears out it no longer holds the pressure and will cause the pedal to go to the floor. Also check your brake fluid level, if it is going down u may have a leak. Have your breaks looked at asap.
There should be a lever down by the brake pedal. it will look kind of like a gear with a tab on it. that lever releases the parking brake. just be careful not to let the parking brake pedal smack you in the face....
The air in an air brake system is the "fluid" to activate the brake, much like brake fluid activates the brakes in your car. One difference is that you are not pushing air down the lines when you step on the brake pedal, instead you are releasing a metered amount of air, or "application pressure" from the reservoir, through the treadle valve (brake pedal/valve) to the brake chambers, to apply the brakes. Air also releases the parking brake, as the parking brake is always in the on mode, until you push a valve on the dashboard, sending compressed air to the parking brake chambers, releasing them. The parking brakes are spring powered, and the air over rides these springs.
UNDER the dash, on the steering column and it makes contact with the brake pedal It looks like a bracket, that wraps around the brake pedal arm, and it has a cylinder type switch that makes contact with the brake pedal arm. When the brake pedal is pressed down it pushes the cylinder switch together which closes the circuit and makes you brake lights come on. It may be a fuse or wires but start with the switch.