So if I am in boost, my brake pedal only goes down a couple inches or so and is super tight (new Stoptech pads and rotors, 12.75" in front). But when I am not in boost, I have to pump them a couple times to get them tight. Yesterday I re-bled the brakes and tested the check valve that comes off the plenum to the booster, which seems to work properly. After all that, no change.
So, before I just start throwing money at it, I'm wondering if anyone else had this same thing and how you fixed it. I see it as two possibilities, rebuild master cylinder, or replace brake booster.
Please only reply if you've experienced, or know someone who has.. because opinions only cost money
