Quote:
Originally Posted by davepl
If it's going to the floor then you're either compressing air (most likely) or leaking fluid past a piston (unlikely).
Don't get distracted by assist or bore sizes or pedal ratios yet. All of that stuff is secondary to the fact that the pedal is going to the floor, which can't happen in a sealed system no matter how wrong or right those ratios are.
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That would be an option as to why its doing what its doing. If a master goes bad and the vac from the booster sucks the fluid past the seals you will never see the fluid sucked into the booster.