Trouble Shooting Brake Problem

[HellaSexyS13]

so i installed the 300zx brakes (front and rear) on my s13 coupe, also installed the 300zx master cylinder.

i go to put brake fluid in the system today and it sucks a little in and then stops and the pedal still feels soft. i kept pumping the pedal but nothing happened, i also opened the bleeder valves on each caliper and nothing came out.

what could the problem be? a faulty master cylinder? a clog?

any help would be great thanks

[Pro ViZIon]

I would check the master cylinder first. Put your old one back in and see if that works.

[zombiewolf513]

How are you bleeding the brakes?

Is there any brake fluid leaking anywhere?

[HellaSexyS13]

nothing is leaking, the brake lines wouldnt even fill up, i was told i need to bleed the master cylinder first so im gonna try that.

[japslapsilvia]

yes you should bench bleed the master first then install and bleed the entire system