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Vanishing brake fluid

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Old 10-07-2015, 05:30 PM
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Default Vanishing brake fluid

So the last time I drove it, everything worked fine. I go out last night to just drive and I have no brakes. Pedal all the way to the floor. I check the master cylinder resivour and its empty. There is no sign of a leak any where. Might sound weird but I've crawled under and checked each wheel visibly, nothing. I've never experienced anything like. Any ideas?
Old 10-07-2015, 05:40 PM
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Do you have ABS?

Master cylinder can leak into the booster.....
Old 10-07-2015, 06:14 PM
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Booster is empty
Old 10-07-2015, 06:31 PM
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If it's leaking into the booster it is quite possible that the brake fluid is getting sucked into the engine.
Old 10-07-2015, 06:40 PM
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No sign in the vacuum line. But how would know?
Old 10-08-2015, 04:22 AM
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Originally Posted by pstrman
No sign in the vacuum line. But how would know?
Fluid disapering.
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