C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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No brake pressure

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Old Dec 17, 2013 | 08:57 AM
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Default No brake pressure

69 with power brakes. Total brake replacement done 6 months ago. Everything was fine until this morning. Lost all prussue in the pedal. Checked the master cylinder and it is full. Any thoughts on where to begin?
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Old Dec 17, 2013 | 09:06 AM
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There are several threads in the Tech Section that are already started with the exact problem that you have, My '68 also has the same brake problem.

Please read the other brake threads and ask questions in one of those threads since a lot of information has already been posted in them......then we can keep the information where it is easy for everyone to use.
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Old Dec 17, 2013 | 10:21 AM
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Pull all four wheels and look for a leak at he calipers, hard lines, and rubber lines. Remove the master cylinder cover and cover your fenders to avoid any splash and slowly step on the pedal. You should see two small fountains of fluid come up, if not and no leaks elsewhere master may have failed.
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Old Dec 17, 2013 | 01:47 PM
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It's pretty common for a master to fail due to the first very cold spell, especially if it's not a DD.

Chances are high it was a poor rebuilt one 6 months ago.
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