Installed Z06 calipers with new braided lines on my 03 SS. Tried to bleed by two person pump and bleed just to get it to a shop to have the tech 2 used to fully bleed the system but no fluid at all will come out of the rear caliper, no pedal pressure will build up, and the reservoir is full. Any ideas? Do I need to bleed the master cylinder first? And can that be done with it still installed?

 

You could try pumping fluid from the rear bleeder up to the master.

 

got it done the old pump and bleed. A bs napa brake bleeder one way check valve was locked both directions. Brakes work awesome. Highly recommend this to any silverado that runs 20's or bigger. Z06 calipers, Bear rotors, EBC yellow pads, Russel SS brake lines, Rudy front brackets and JYD rears. Plus no one likes looking at stock baby brakes behind 24's.