If the hose did not blow, and the master cylinder does not/did not empty completly, then you only need to bleed the caliper that the new hose is connected to.
If the master cylinder was never empty....
Top off master cylinder, leave cap off, pull wheel, get new hose out and have ready and get a catch pan under the hose area, loosen the connection at the hard line but keep together so it won't leak too much, remove clip holding connection at hardline/hose, remove the bolt at the caliper, quickly remove hose from hardline, attach new hose at hardline, let new hose fill with fluid. (it will do this by gravity), replace bolt hose fitting at caliper with new washers, tighten hose at hardline, reinstall clip. All the time making sure master cylinder does not empty, use a friend if need to. Now just open the bleeder on the caliper and make sure all the air is out. It will gravity bleed also. Tighten bleed screw, top off cylinder replace cap. Check to make sure have good pedal and brakes. All this I can usually do in about 15 minutes or less, depending on the hard line connection. Sometimes it alone can be a b!otch.
Edit to add, if the front hose blew, then you should only have to bleed the front. The rears are on a different circuit of the master cylinder, and even if it looks like it emptied, there should have still been some fluid in that side of the reservoir so no air should have got in..
Kevin
[This message has been edited by Lambo nut (edited 10-24-2012).]
