93 corolla brake problems

93 corolla brake problems

my car has been in the shop for about a few months now..i cant seem to figure out what is wrong with the brakes..it will build pressor when the key is off..then when u start it.it goes straight to the floor..and wont stop..i changed the master cyl brake booster blead and blead the brakes still no brakes its alittle better but not great.anyone ever had this problem before??..i cant get the damn thing to work

you might have a little or a lot of air in your brake lines. how many times did you bleed the brakes?

i bleed them ALOT pressor blead them also..no air came out..it made it ALITTLE better but not a whole lot...i alos changed the distribution block on the fire wall

any body??...i blead them again...its works sometimes OK then it goes right to the floor...

same shit

im having the same problem with my 00 corolla. i changed the master, and proportion valve on the firewall. still no pedal. will pump up fine when car is off but goes to the floor when car is running.

i had to replace my rear brake lines on my 94 . the 90 degree angle where they come out from under the car and go to each wheel , one was cracked or split down the middle linnear with the line . and oh yeah , toyota is proud of these.$$$$$$$$$

check your rear wheel cylinders and brake shoes. if the shoes are coming apart then the wheel cylinders will be over extending when you push the pedal causing the pedal to go to the floor. or if they are leaking obviously that would cause it. also make sure the brake shoes are adjusted out if you have replaced them or it will cause the same problem.