unek87

ok last night i swapped in a new master cylinder . bench bleed it and ever thing ,bleeded the the rest of the system worked fine for bout 2 or so minutes then the pedal got so damn hard i couldnt press it down even a inch these is while i'm driving mind you the brakes start to get stuck into place so i have to drop gear to 1st just to keep the car going til i could get the car to a parking lot . the only thing i could do was take the mc of the brake booster(lines still attached to mc) and use the e-brake to get back to the house ? any one know what this could be ? i need help i need to get this car on the road quick before my wifes car goes in to the body shop are we'll be stuck with now car! thank you

Aaron Cake

iTrader: (1)

A dragging caliper will cause this problem.

unek87

dragging caliper will make all the calipers do this i have the aas sensor cut on the bottom of the mc and i havent disconntected the computer for it in the back spare wheel area ( thats where its right ), could this be the problem cause i'm just trying to narrow it down cause if it isnt that then its my brake booster then cause i just got new calipers put in the rears and the fronts are fine i really think its my booster which suck cause that going to be a punk to take out

unek87

will the brake booster out of a 4 lug work for a 5 lug cause? i have a parts car with a good booster i know for sure.

unek87

bump

1SxyRXy

i say brake booster= broken, did that brake booster come out of a turbo, or na, S4 or S5, go get the right brake booster im almost 100% sure thats the problem. and when you replaced the mc did you put the pin back in the brake pedal?

unek87

its the stock brake booster all i did was replace the mc. its a s4 gxl. and when i replaced the mc i didnt take no pin out from the pedal . so if its a bad brake booster can i swap the one from my 4 lug parts car to my gxl and every thing will be fine . or do i need to get another one ? thanks

unek87

bump