Brake help

[chris79bronco]

Alright Im about feed up trying to get these brakes right. I bout the truck and needed a brake job, pedal went to the floor before the brakes would start stopping. I noticed a wheel cylinder leaking. I went to advance bought master cylinder, 2 wheel cylinders, shoes, hardware kit, slack adjuster kits and front pads. Put it all in bleed them and didnt fix the problem. So I went and warrantied the master cylinder thought maybe I got a bad one (hardly a chance considering I bought new not reman). Bench bleed it and didnt work, same problem. Talked to a buddy and said it could be the booster, put a booster on didnt fix it, thought maybe the vacuum pump, put a vacuum pump on and no different. IM FEED UP!!!!! Is there something Im missing, could I be getting the wrong Master cylinder because its a OBS? Please help

[19gmcjimmy75]

ive been tracking down the same bs on my 96...new parts galore, multiple times and hasnt fixed anything. i have been thinking about deleting my RABS valve to see if it makes a difference. there is a place to bleed the RABS but i think i read something about it having to be hooked to a scanner to bleed it....if im wrong someone please correct me, and if im right someone please enlighten us to how to fix our brake problems

[StrokinNSmokin6.0]

Not directly related but it maybe worth a look. I fought the same issue awhile back but it was with the front calipers. I bought 2 brand new ones from advanced and bled the brakes I cant even tell you how many times and still no luck. Needless to say I got a bad front caliper from advanced somehow the pistons in the caliper were not functioning at all and air was getting past the seals somehow but not leaking any brake fluid. Swapped the caliper out bled them once and haven't had the issue since.

[chris79bronco]

Well I figured it out, and I feel like a dumba## for not thinking of this, when I replaced the rear shoes the old slack adjusters where way out, prob due to the shoes being wore.......nope not the case. I put the new shoes and hardware on and didnt adjust the rear shoes out far enough. The setup on these trucks are a little different then what im used to dealing with, the rear brakes set the pedal height! I adjusted out the rear shoes to where I had to literally tap the drum on with a hammer and wala I have brakes!!! Better than my wifes 06 focus too lol

[nohsp4u]

Thank you so much for the follow up. I will have to record that info for when i do my brakes. I would have lost my mind too. Little things can be such a beach.