Please help me brainstorm. I replaced brake calipers on the Miata. Completely flushed the fluid but I'm still getting what I think is a too-soft pedal.
In the course of bleeding, I pressed really really hard on the brake and heard a little "pop" from under the hood. Master cylinder? Booster? No leaks and no amount of further bleeding is showing any air. Yet, the pedal still doesn't feel as hard as I remember before I started.
I'm tempted to swap in new master cylinder. And maybe booster. But that just seems "wrong" to throw parts at the problem without a theory of what might actually be wrong.
Ideas?
Steve