Question about 1991 GMC K2500

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I just asked a question regarding front brakes on a 95 Suburban. Did anyone get it? I lost my connection....x Since I did not see this screen before I'm guessing no one received my question. Here goes, I replaced the front rotor, which was so chewed up, the slots were trashed. While replacing the pads, I noticed that the caliper was not functioning so I had it rebuilt. While bleeding the brakes (front brakes from the hoses), we went from no pedal to some pedal. At some point the master emptied and I'm sure there is air in the system. Now, I have no pedal at all. Any ideas????

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  • adefalco38 Jul 04, 2010

    If anyone has any ideas, they would be greatly appreciated. I have a 1995 Chev Suburban w/brake issues described above.....Thanks

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  • Master
  • 8,197 Answers

I also have had this happen to me. My problem was that my master cylinder went out on me. I can not say that has happened to you yet.

I can say that yes you do have air in the line. You need to bleed the breaks again. On the link below will tell you how. Also after you open the bleeder nut and tighten it back up 2 or 3 times get up and look at the master cylinder to make sure it is full and keep It full at all times.

http://www.ehow.com/how_2283278_bleed-air-out-car-brake.html

If you have any questions please ask.

Posted on Jul 04, 2010

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  • Jyackle5
    Jyackle5 Jul 04, 2010
  • adefalco38 Jul 05, 2010

    For the back brakes, do I need to take the wheels off? I see what looks like a bleeder screw in the center of the hub, would that be the bleeder or some type of grease fitting? I was told that I would not need to remove the back wheels to bleed the brakes & want to ensure that this is legit information.

  • Jyackle5
    Jyackle5 Jul 05, 2010

    For the back breaks you do not need to remove the wheels. The zert fitting on the back is the bleader screew.

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  • Master
  • 4,044 Answers

Assuming the air bubble was sucked down the line your choice is to refill the master and go throw the bleeding process with all 4 brakes using the bleed fittings on each caliper. Make sure you check the fluid level after each bleed. Make sure the engine is running and all vacum lines are attached as they should be.

Posted on Jul 04, 2010

  • 1 more comment 
  • adefalco38 Jul 04, 2010

    The bleeder screw on the Right front caliper is broken off into the caliper, that is why we went to bleeding from the hose. Will it bleed out if I bleed from the LF caliper, the RF hose and the cylinders in the back brakes?

  • adefalco38 Jul 04, 2010

    Are you still out there?? I don't know why but my questions seems to be attached to a '91 GMC K2500....How does that get fixed?

  • James Young Jul 04, 2010

    The object is to bleed the air bubbles from each caliper. You can't get an air bubble out of the right side bleeding from the left. If the bleed valve is broken off that is most likely your problem. Go to Auto Zone or another parts store and tell them you need an Easy Out bit and drill bit. You will have to remove the caliper, carefully drill into the broken valve and us the easy out to remove the piece that is still inside. You will also need to get a replacement while you are there. The bleed valve bleeds air off that is inside the caliper and that air will not go back up the house once it is inside the caliper.

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