brake pedal to floor after sudden stop

1999 FORD F-150
170,000 MILES • 4.6L • V8 • 4WD • AUTOMATIC
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ZBBOWERS
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  • 1 POST
After suddenly stopping I noticed my brake pedal going all the way to the floor. It still stops my truck but I know something is wrong. The brake fluid is still pretty full though I did notice a leak near the master cylinder. I'm not sure if it was brake fluid or not but because of the recent issue, I believe it may be. Any advice or help would be greatly appreciated.
Jul 13, 2020 at 2:31 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good afternoon,

Check under the car for any leaks. If you find any, they must be repaired.

Chances are the master cylinder seals have failed internally and the master cylinder needs to be replaced.

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

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

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

Roy
Mar 10, 2021 at 3:16 AM
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