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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 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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