A few months back I went to hop in my beloved '66 Mustang to run off down the road. When I hopped in, it started up great, and I pumped the brake pedal and on the second pump it went straight to the floor. Not a problem I thought, I’ll just look underneath and find the puddle and replace the leaking part, usually a slave cylinder. But there was no puddle!
Again no problem I though, I just put some more brake fluid in there and pump it until it came out of the leak then fix the leaking part. Well after a couple of months, I went and put the fluid in the master cylinder and then started pumping. Nothing came out. The level on the reservoir didn’t even fall. The fluid is now a milky rusty color.
How can I identify where the leak is at? Should I try and bleed the brakes till I find the location of the leak? Because I though if there is a leak in the system then it would essentially bleed the brakes through that hole.
Thank you for your help.