I had very soft brakes so I went to bleed them. I noticed that both rear cylinders were leaking so I replaced those. After installation I went to bleed them again and fluid would only come out the first few pumps.

I replaced the master cylinder (bench bled also) and also replaced the brake booster.

I went to bleed the lines again. The rear right bled fine. The rear left will only bleed good for a few pumps. The front right and front left also have this same problem.

Here is how I am doing it. I pump the brakes 3 times and then hold it down. While its held down I open the valve and fluid will come out. After doing this about 2 or 3 times, less and less fluid comes out. Eventually its nothing.

Any thoughts?

 

sound like you have a clog in the line .. dis connect all lines at the mc and at the calipers and drum if you have them and blow presurerised air thur it to blow out any ggunk

 

awesome will do.