After replacing front brakes the brake pedal goes to the floor

2001 MERCURY MARQUIS
118,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
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FIREBRICK1
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  • 2 POSTS
brake pedal pumps up, let it sit a few minutes it loses pedal it goes to the floor. Just installed new calibers and rotors and pads on front, re-bled all fronts and master cylinder, always kept fluid topped off. trouble started when trying to bleed passenger side, could not get out the air, even with a vacuum pump. Used the clear tube method from passenger side to master cylinder, still no pedal holding.
Aug 9, 2019 at 8:58 AM
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FIREBRICK1
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Sending more on brake problem. I have found what looks like fluid on booster tank where master cylinder mates up to it.
Aug 9, 2019 at 9:45 AM
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ASEMASTER6371
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  • 52,796 POSTS
Good afternoon,

The rear seal is leaking into the booster.

https://www.2carpros.com/articles/brake-pedal-goes-to-the-floor

You need a master cylinder.

https://www.2carpros.com/articles/how-to-replace-a-brake-master-cylinder

When you replace it, use a pressure bleeder to bleed the system. Vacuum and 2 person is not enough bleeding to get all the air out.

https://www.2carpros.com/articles/how-to-bleed-or-flush-a-car-brake-system

Roy
Aug 9, 2019 at 12:56 PM
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