Brake pedal goes to the floor

Tiny
RMACMILLAN
  • MEMBER
  • 2002 GMC ENVOY
  • 3.6L
  • 4WD
  • AUTOMATIC
  • 182,000 MILES
I have a pedal that goes to floor when the engine is running. I have replaced master cylinder, ABS module, ABS modulator, all 4 calipers, brake booster. I have tried using a code scanner tool that has the ABS bleeding and the pedal is still going to the floor. I have bleed the brakes several times, used about 6 quarts of fluid. There a no leaks so run out of ideas
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Sunday, August 18th, 2019 AT 4:30 PM

1 Reply

Tiny
SCGRANTURISMO
  • EXPERT
Hello,

In the diagrams down below I have included the factory diagnostic troubleshooting guide for excessive brake travel for your vehicle. It might appear to all over the map, but it is in order, and when it goes from one thing to another, you are meant to skip to that sub inspection. Please go through the guide, in order, and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Sunday, August 18th, 2019 AT 11:16 PM

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