1986 Ford F150 SuperCab "brake pedal goes floor" Questions

brake pedal goes to the floor i replaced the master cylinder and had good brakes.calipers were sticking and i replaced them since then pedal goes to the floor with a swishing sound,replaced front ...

...brake pads master cylinder bled brakes all 4 pedal pumps up take foot off pedal wait 5 secs pedal goes to floor. pump the pedal about 10 times and see if it comes back up, u need to pump the caliper ...

...brake pedal depress pedal goes to floor.after that pedal is ok? Hello With regards to the brake lights, you need to replace your brake switch located under your brake pedal. With regards to spongy ...

...Brake pedal goes to the floor.Has to be pumped to get brakes to catch at all,and in a couple of seconds the pedal goes right to the floor again.Doesn't seem to be any leaks or loss of fluid. check ...

...pedal and hold it down hard does it sink im asking these question because i think it is the master cylinder. i hope this helps write back with more info give feedback if you can ck your brake fluid ...

no brakes no lines broke If the brake pedal goes to the floor, and the master cyl is full of fluid, the master cylinder could have failed.

...pedal slowly goes to the floor When this happens you are in a dangerous situation. If you have a leak, once the fluid runs out you will have no brakes. If another reason, like a bad Master Cylinder, ...

...brake pedal works fine on first stop but after that it goes to the floor if you pump it it goes normal and it repeats this process?????? fluid levels are full no sign of brake cylinders ...

...master cylinder and properly bled system. the only other thing could be abs pump i guess. thanx power brake booster is blown if the pedal goes to the floor and everything you stated was done ...

...brake pedal i hear what sounds like a fluid leak but i checked every thing and there is no leak all new brake lines was put on the whole truck You need to have the ABS hydraulic control block bleed, ...