Originally Posted by solidaxel
Does the "new to me also" method have something to do with the fact that most cars today have disc front and rear and there is a very low residule pressure valve or none at all in the MC ?
That IS a good theory- but the '80 Malibu this MC was for is a disc/drum set up.
It seems odd, though, that previously the bench bleed procedure was different and now so seemingly easy in comparison, w/o anything changing AFA how the MC is built or functions- at least AFA I know.
I would have thought that WE would've known about this before the rebuilders figured it out!