MY BROTHER REPLACED MY BACK BRAKES AND ROTORS

  • Tiny
  • Anonymous
  • 2000 Chevrolet Blazer
  • 158,000 miles

My brother replaced my back brakes and rotors. Now (not everytime) my brakes will go to the floor and rattles and also now it is making a thudding sound please help

Tuesday, February 26th, 2013 AT 4:04 PM

1 Answer

  • Tiny
  • caradiodoc
  • Expert
  • 24,978 posts

The brake pedal had to be pumped a few times to run the pistons out of the calipers so they would contact the new pads. At any time was the pedal pushed all the way to the floor? If so, the lip seals in the master cylinder were likely damaged from the crud and corrosion that build up where they don't normally travel. Often that internal leakage doesn't show up as a sinking or low pedal for a few days.

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Wednesday, February 27th, 2013 AT 6:43 PM

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