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Answered 2007-05-12 22:35:37

Vacuum booster is working--When vehicle off there is no vacuum assist (for power brakes) When vehicle is on vacuum is present Brake pedal going to floor is another problem--no fluid in master cylinder? Leak in system? Brakes not adjusted properly?

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Have your brake system checked immediately! (by a proffesional)


Low fluid level or defective master cylinder.


dude! sounds like air brake sys.(system needs to be bled get air out of sys.)As for gettin stuck , check linkage,brake booster and master cyl.


A brake fluid leak in the system would do that. Check the brake fluid reservoir. If it is empty you are in need of brake work asap!


It would be the rubber pad that sits on your brake pedal. Unless they were referring to brake pads, which are the pads which enables your vehicle to stop by pressing the brake pedal.


Your front brake rotors are warped. They need to be removed and turned true on a lathe. Many auto parts stores offer this service.



Usually that would be caused by a faulty brake light switch connected TO the brake pedal. If the brakes work the pedal is probably ok.


look under dash on the top side of the brake pedal when pushing the pedal you will see a switch with 2 wires make contact w/ pedal assembly adjust or replace switch


A brake pedal going directly to the floor is a sign of a few things. First, you are in need of brake fluid. Second, the brake pads are probably almost worn out. They may be worn out past the point the ABS light would be active. The ABS light may also be burned out.


Adjust the brake switch located on either the brake lever itself, or it will be attached underneath the dash. SOunds like your brake switch is off or broken. Look at the brake pedal and there is a switch around it that gets activated by you pushing the pedal - that is what needs to be adjusted or replaced. The brake light switch has probably come loose or broken. Look under the dash near the brake pedal arm. There is a switch attached to a bracket.



There's a switch that the brake pedal engages when pressed that makes the brake lights go on. this switch may be stuck.Or the peddle staying on switch



It should be on either the pedal shaft or the pedal frame.


If you break pedal is pulsing but is not soft or spongy, that sounds like the rotors on your truck are warped and they need to be turned. My suggestion would be take your truck to a local brake shop and have them take a look.


The brake lights will stay on if the switch is either out of adjustment or damaged. Pull up on the brake pedal to see if it will go out, if it does, you might be able to get by just adjusting the position of the brake light switch. BTW, it's on the brake pedal mechanism, under the dashboard.


Check your brake fluid level, if its low it can cause this problem. if that's not the case, take it to a mechanic asap.



Your power brake booster may be defective. You may have a vacuum leak or the booster itself could need replacing.



if brake pedal is soft , either there is air in the system ,a brake fluid leak, or brake linings and pads are worn allowing the pedal to travel to far if there is a fluid leak, this can usually be found by getting under vehicle and looking at inside of wheels for brake fluid


A dashboard light appearing when brake pedal is depressed usually means brake fluid is low.


And why in the world would you want to do that, as the rear brakes which are operated by the parking brake are already activated by the brake pedal. Do not even think of doing this.


A COMMON CAUSE FOR A DROPING BRAKE PEDAL WOULD BE A LEAKING MASTER CYLINDER.(INTERNAL LEAK). THERE ARE OTHER REASONS BUT THAT IS A COMMON ONE. YOU ALSO HAVE AIR IN THE SYSTEM, NO FLUID, OR A LEAK SOMEWHERE IN THE SYSTEM(MAJOR LEAK). IF THE PEDAL JUST FELL TO THE FLOOR TRY LOOKING UNDER THE DASH AND MAKE SURE THAT THE PEDAL DIDN'T COME LOOSE FROM THE PUSH ROD AND NOW IS JUST "HANGING".



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