All right, I think I already know the answer, but since I hate troubleshooting with a checkbook, I thought I would ask here first.

'64 C60, 292, 4+2. I have had her for about a year now. When I first got her home the brakes would almost put you through the windshield. I could have 10 ton of gravel on the back and those brakes would still bring you right to a full stop in a hurry! then they started to fade. They got a little weaker and a little weaker. So I decided to have a look and see what was going on and where to go.

The bleeder valves looked as if they had not been touched since it was made. Rusted and crudded in place to the point of being useless.. So, started there and got new valves installed to bleed the system get some clean fluid in and go from there.

Fast forward a bit. I have nothing now. No brakes. The first time you touch the pedal it mushes slowly to the floor and does nothing. Let it come back up? Now you are pushing on a rock and it won't move at all. And stil no brakes.

What's the call?