GMC Repair: 2000 GMC Sierra Brake Problems, gmc sierra, abs light

Question
Hi there, I own a 2000 GMC Sierra and I am having problems with my brakes. There are no leaks in my braking system, my abs light is not on, my brakes are all good, but my brake pedal goes to the floor....and there is no air in my lines...I have bled them twice. Is it possible that this is all caused by my master cylinder? Thanks in advanced:)

Kris:)

Answer
Hi
Two things can cause this.
1) Master Cylinder.
2) ABS Pump.
I actually have NEVER seen an ABS pump on these year models at fault.
I would suspect the Master Cylinder.
I would make sure AGAIN there is NO LEAKS.
Hope this helps.
Good luck
Pawl