Brake light on, pedal spongy, brakes bled, what's wrong?

[ukiltmybrutha]

I noticed that one of the rear wheel cylinders was leaking so I replaced it. I gravity bled all 4 twice. I know that not everyone knows about and/or is a fan of gravity bleeding but it is what it is.

Anyways, the brake reservoir is full but the brake light and spongy pedal persist.

I have done some searching here and found that some have had problems with the brake booster.

Previous owner advises that the master is brand new and it looks it every bit.

I notice that the two o-rings below the reservoir appear to be leaking and while this needs to be address, I see no reason that this could have anything to do with my problem because the master is below that point.

I don't see any additional brake lines leaking.

I do notice that after bleeding the brakes, the reservoir shoots out bubbles and brake fluid from the reservoir. I also notice a hiss when I hit the brakes from under the hood.

Any thoughts?

Thanks