I am trying to bleed my brakes and I had no problem bleeding the rear but after rebuilding the front calipers I can't get the fluid to come out of the bleeder values. I keep pumping the brake but the fluid is not coming out. What could be the problem?

 

could it be too much moisture in the brake system?

 

Do you have someone helping you? With the bleeder closed, one person pumps the brake pedal a few times and holds it, and you open the bleeder till the pedal drops to the floor. Hold pedal down, then close the bleeder and do it over again. If you're pumping the pedal with the bleeder open, you're just sucking air right back in. If you're already doing it right, open the bleeder and try letting the fronts gravity feed, with the cover off the reservoir, until fluid starts to run out.

 

another way to do is is to use some vacuum hose the same size as the bleeder and run it into a 20oz soda bottle with some brake fluid already in it. its enough to keep air from drawing back into the caliper. thats the "toyota approved" method we use at work