I just bought rear brakes and I finally got them on but the piston is stuck in the caliper and we tried bleeding the brake and in the hose we used there was lots of air flowing from it and we were bleeding them for almost 2 hours.

 

Well Matt I see you accomplished pressing the piston back in?
How did you proceed on doing this?

When doing this with the bleeder you needed to just crack the bleeder a little and shut it when you pushed the piston back in just enough for clearance for the new pads.
Now to pump the brakes back up again.

Try this and let me know if you were sucessful Please.

Making sure the boots are removed from the reservoir and there is sufficient brake fluid
Try closing the bleeder pump up the breaks 5 of 6 pumps.
Hold the lever or peddle in and loosen the bleeder relieving the air out holding the lever in to avoid sucking air back in, then tighten the bleeder.
Double check the fluid in the reservoir each time.
Repeat this until you get a steady flow of fluid or the sponge feel disappears.

 

Thanks for the reply. I got it to work.