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2005 Chevy leaking brake fluid into the booster.

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Old 11-26-2012, 09:24 PM
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Default 2005 Chevy leaking brake fluid into the booster.
I have a 2005 Chevrolet that leaked brake fluid into the booster. I put a new master and new booster on it a few weeks ago. Low and behold, it is doing the same thing but at a slower pace. Am I just a lucky guy who got a bad new master cylinder, or is there something that I did wrong?
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Old 11-26-2012, 10:11 PM
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Originally Posted by Formulized94
I have a 2005 Chevrolet that leaked brake fluid into the booster. I put a new master and new booster on it a few weeks ago. Low and behold, it is doing the same thing but at a slower pace. Am I just a lucky guy who got a bad new master cylinder, or is there something that I did wrong?
Did you bench bleed the new unit before installation???

If so how did you do perform this procedure???

When you installed it on the Vehicle did you compress the piston all the way while trying to bleed the Vehicle???
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Old 11-26-2012, 10:28 PM
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Originally Posted by 1FastBrick
Did you bench bleed the new unit before installation???

If so how did you do perform this procedure???

When you installed it on the Vehicle did you compress the piston all the way while trying to bleed the Vehicle???
I bench bled the unit per the instructions included. The brakes were pressure bled.
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Old 12-17-2012, 11:18 PM
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Originally Posted by Formulized94
I have a 2005 Chevrolet that leaked brake fluid into the booster. I put a new master and new booster on it a few weeks ago. Low and behold, it is doing the same thing but at a slower pace. Am I just a lucky guy who got a bad new master cylinder, or is there something that I did wrong?
How did you come out on this issue?
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Old 05-11-2013, 12:31 AM
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Originally Posted by therock
How did you come out on this issue?

Replaced the master cylinder again and all is well.
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