[bostonwindows30]

Have a 97 Chevy pick up k1500 brakes were weak so replace drum brakes in the back, wheel cylinder, and all hardware, also replaced master cylinder... After bleeding brakes, nothing coming out, even when I took brake lines off to do the master cylinder, nothing really came out??? Help anyone!!!!!

 

[Ron6519]

Rubber brake lines can close up.

 

[ukrkoz]

Did you bench bleed master?

 

[ukrkoz]

I also do not get it. After bleeding brakes nothing come out. Out of where? So you managed to bleed the brakes and it WAS coming out? Then stopped?
Why do I have that suspicion that you do not have brake booster push rod properly connected?
Or, simply have bad master? Happens.

 

[bostonwindows30]

Yes and still nothing... It actually did this before changing out the master.

 

[bostonwindows30]

I changed out wheel cylinders and did brake job, went to bleed brakes and zero flu it came out... So I changed out the master cylinder and still nothing!!!

 

[bostonwindows30]

Proportional valve??

 

[Rough Rooster]

there is a button on the proportioning valve that needs a reset before bleeding.
Look it up as I can't tell you exactly what to do as it has been years since I did brakes. Depress it or pull it while you bleed. ??

Pressure or vacuum bleeding works best on this model.

Good luck!

RR :smile::smile:

 

[bostonwindows30]

I Reyes pushing it and nothing!!! I pulled the line the goes to the back bricks from the propositional valve and not a drop!!! Help

 

[bostonwindows30]

I tryed

 

[bostonwindows30]

Just figured it out, no fluid going to the back brakes, the ABS pump went on it!!!

 

[47_47]

The modulator is air bound. Did you try to home the modulator?

 

[SeniorSitizen]

Rubber brake lines can close up.

They sure can and how I found that problem I was going nowhere on ice from a stop on level ground or at a slight downward slope. The front brakes weren't completely releasing. Do Ole Bessie, her gas mileage, rotors and pads a favor and replace the front hoses at Bessie's age.