1999 Chevy Silverado soft brake

1999 CHEVROLET SILVERADO
135,000 MILES • V8 • 2WD • AUTOMATIC
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KEVIN JARVIS
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  • 1 POST
brakes are fine for about 30 mins then the pedle goes to the floor i must pump brakes to make it stop howeaver after it cools it workes fine for about 30 min and starts all over again
Jan 10, 2009 at 10:31 AM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
It sounds like the master cylinder is bad. This guide can help you fix it.

https://youtu.be/w7gUsj2us0U

and

https://youtu.be/WDxvEQrMkBg

and

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

Please run down this guide and report back.
Feb 22, 2021 at 5:28 PM