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How do you know when the master cylinder on a 1969 Corvette is bad?
Wiki User
∙ 16y ago
There are typically two indicators of a faulty master cylinder:
1. you press on the pedal and it goes straight to the floor. If you have fluid, you're not leaking at the wheel cylinders and you have bled the air from the line... it's a master cylinder.
2. You press on the pedal, have some brakes then the pedal fades to the floor.
In either case, it's the master cylinder.
Of course, if it's leaking or sucking air and sending up bubbles into the reservoir when a friend presses the pedal... that too. Every time you press the pedal there should be a little "swirl" of brake fluid in the reservoir, but there should never be bubbles.
Wiki User
∙ 16y ago
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