Brake pedal goes to the floor

Tiny
BOBWENDRY1
  • MEMBER
  • 2003 GMC SIERRA
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 71,000 MILES
Bake pedal goes to the floor, no fluid leaks.
Friday, August 24th, 2018 AT 11:01 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

Any recent work done? Master cylinder is a common issue for no brake pedal. Check the fluid level.If you have ABS, there may be air in the system. I would suspect there is air in the lines. These guides 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 these guides and report back.
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Wednesday, April 14th, 2021 AT 1:35 PM

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