Sudden change in brake pedal

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Thread: Sudden change in brake pedal

  1. #1
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    Sudden change in brake pedal

    I was stuck in the snow, rocking back and forth to gain traction when my brake pedal suddenly went almost to the floor. The brakes still work but the pedal still goes almost to the floor. By the time I got home the service brake system light came on and the bells were chiming. I filled the reservoir, the light went off but the pedal still doesn't feel the same. This is on an 06 Silverado 1500 2 wheel drive 4.3 v6. Is there some way to check the booster or is this master cylinder trouble?

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  3. #2
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    Re: Sudden change in brake pedal

    As a minimum, you have a leak. You should never need to add brake fluid unless you are doing a flush. I suspect air got into the lines when the reservoir. Air in the lines would make the pedal mushy. So you need a flush to get it out. Run, do not walk to a repair shop if you can't do it yourself.

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    Re: Sudden change in brake pedal

    Front or Rear of the reservoir was low?

    If it was the "Rear System" (I believe front portion (smaller Part)) then a Rear Wheel Cylinder. Leaked and needs to be replaced.

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