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Suburban bad brakes

Discussion in 'General Chevy & GM Tech Questions' started by biggsmiley, Dec 29, 2013.

  1. biggsmiley

    biggsmiley New Member

    88 subby......brakes are bad.....pedal goes to the floor......if i slam on them i believe the rear brakes engage.....could it be air in the lines...HELP
  2. Pikey

    Pikey Moderator Staff Member 2 Years ROTM Winner 1000 Posts

    moved post to proper sub forum
  3. RayVoy

    RayVoy Well-Known Member 2 Years 1000 Posts

    Yes, if you had them apart. If not been worked on lately, you have a leak somewhere. Look on the ground/floor for a puddle of fluid, or crawl under and look at the inside of the wheels.
  4. poncho62

    poncho62 Member 1 Year 100 Posts

    Pop the top on the master cylinder and see if the fluid is way down. Id one side is empty, you likely have a leak. If its full, you may have a bad master cylinder....or air in the lines

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