So I did a brake upgrade including new stainless lines. In the process of bleeding the brakes I let the master cylinder run dry. I've bleed every caliper on the system several times and there is no air in the lines any further. Yet there is no brake pressure and I can barely stop my car. I feel that I must Bleed the Master cylinder. I have never done this before can some one help. Thanks.

 

When you were bleeding each caliper, did you use the pedal method or a vacuum pump?

 

Your sig says you have an 03 sport with a manual transmission. If so, that means you have the Brembo brakes. Brembos have an inner and outer bleeder valve if I remember correctly.

 

It says 03 sport sd, so I'm assuming it's a sedan, meaning no Brembos.

Anyway, you'll have to remove the MC and bench bleed it. Here is one guide that can help you:

http://autorepair.about.com/od/fixit...ench-bleed.htm

Them of course, you'll have to re-bleed the system.

 

Well I have to 03 sport sedan, so no brembo's. I used a vacuum pump to bleed my brakes. From my research I found out I need to also bleed the ABS modulator along with the master cylinder. So I decided to rent a car haller and bring it to the local Nissan dealer. I can tell you that I will never let a master cylinder run dry ever again. Had to learn the hard way.

http://www.flickr.com/photos/60071539@N04/5485627075/

 

The Nissan dealer did a great job and while I was waiting I got to sit in a new 370Z. Wow what a car! It made my butt water a little.