replace brake booster
If your brake peddle goes to the floor, you have lost brake fluid from your master cylinder in the engine compartment. Check your rubber brake hoses at each of your wheels, look for any signs of leaking brake fluid at your wheels, connections,lines, and master cylinder.
soft peddle feel maybe from a damaged brake master cylinder. this pressurizes the peddle, and if there is a leak in the cylinder it might feel soft or flop all the way to the floor.
Very common, as long as the brake pedal comes back up after the engine is started its good. It takes a second for the brake booster to build up pressure.
Press and release the foot peddle that is located on the floor
A leak in your brake line, or very low brake fluid, both of which are extremely dangerous and should be fixed at once.
a leak or a bad master cylinder
If a truck has a clutch brake it would only be used when coming to a complete stop. By pushing the clutch peddle completely to the floor you would apply the clutch brake. This stops the clutch disc from spinning making it easier to shift into 1st or reverse gear. Normal shifting while driving you would not need to or want to push the clutch peddle to the floor to activate the clutch brake.
Low brake fluid, drums/rotors in need of replacement, pads in need of replacement, air in the brake lines, worn master cylinder, brakes out of adjustment... all possible reasons.
first check uour fuses in the right front floor column. then the break switch on the break peddle,
If bleeding rears and bleeder is open and peddle wont go to the floor try a front bleeder to see if you get results. what did you do to have to bleed them?
U DON"T have IT in GEAR-U are UP against a WALL-U have the EMERGENCY brake ON ---The brakes are LOCKEDTHE Transmission is HISTORY-Drive Shaft is gone-the Engine isn't running-
This one is easy. Brake booster diaphragm is ruptured, causing a massive vacuum leak, which will cause the engine to run poorly when the brakes are applied. A loss vacuum assist will make it difficult to stop the vehicle.