Ok when i bought my TC it had a py pedal compared to my mustangs so i figured it is like every other car that feels different. well i constantly check fluid levels and it never once has needed any brake fluid. well the pedal was getting lower to the floor so i figured i would check all the pads and hardware. so i replaced the front pads and rotors, cleaned and adjusted the rears. So i go back to my Daily driving and one day i get in it and the pedal goes to the floor and the brake light comes on. So i investigate the fluid level and it is low about 3/8 of an inch in the front of the resovoir. get in pump the pedal and all is back to the normal py pedal. so i go home and bleed the brakes to check for air. the pass rear was good, the driver rear had nothing:mad: no fluid would come out of the bleader wtf. im guessing the block on the rearend is clogged or the line is clogged not sure but i finished bleeding all that i could and the pedal didn't get any better. so i drive it 3 more days and as i pull into the car wash i hit the brakes and i hear a little pop and the brake light comes on and the pedal goes down, check the fluid and its 3/8 or less missing again. i can't find any lines leaking or the rear wheel cylinders. Any ideas
Sounds like a bad master cylinder (internal seals worn) to me. It is also possible that the fluid is coming out of the master cylinder at the piston end. Problem on this vehicle, there is a power booster on the piston end of the master cylinder. Maybe it is possible that the fluid is leaking into that. Someone else may have better info.
sounds like you have a frozen wheel cylinder.... (the one that wont bleed) it is common on these cars. make sure both the rears will collapse easily. replace as needed
and possibly a bad master cylinder too.
thanks guys i will check into the master cylinder.
as for the wheel cylinder i didn't even think about it being froze thanks. i will definently check that!!
It sounds like a leak to me. I had a similar problem with me 3.8L bird, and it was a rotted out brake line.
all is fixed. i swapped out the Master cylinder and the wheel cylinder and everything works like it should. did have problem with the front driver side bleeder but got it all.. thanks for the help guys