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  1. 9

    1999 Tahoe, soft brake pedal

    I guess that's possible, but the calipers and lines are maybe a year old. And when they were installed, I made sure to bled the brakes till I had clean fluid coming out. The wheel cylinders and shoes are a little older, but I thought I flushed the system pretty well when I installed the new...
  2. 9

    1999 Tahoe, soft brake pedal

    Yes, I did. I've heard that you need to do that, instead of just forcing the fluid back though the ABS module, and MC. I guess I have just been lucky, and never had a problem before. I think all that trash came from doing the automated bled procedure. Other than the hard lines and ABS...
  3. 9

    1999 Tahoe, soft brake pedal

    Sorry for the long post, but because it's brakes, and there are many variables, I think the details are important. Since this is brakes, let me start this off with "this is just information, I'm not telling anyone to try this, since this brakes, and if it's not right, you could cause property...
  4. 9

    1999 Tahoe, soft brake pedal

    I'm going to try and swap the whole thing. I bought a 97 Tahoe a few months ago with a bad trans.
  5. 9

    1999 Tahoe, soft brake pedal

    Old booster was turned in for core charge at the local NAPA. I think it was coincidental that my pedal went soft changing the booster. I didn't get a chance to swap the ABS module, but I tried something else. I'm not saying this is fix for every low/soft brake pedal either, but it made a big...
  6. 9

    1999 Tahoe, soft brake pedal

    I did automated bled process with a Tech2 scan tool, then manually bled all 4 corners after, 3 times. No change in how the pedal feels. Just to be clear, the pedal is firm with the engine off, and doesn't "pump up". When running, it will go to the floor, but will lock the front wheels before it...
  7. 9

    1999 Tahoe, soft brake pedal

    Old and new push rod, side by side. Looking back, I think I caused the original problem when I replaced both front hub bearings, and contaminated the sensors and tone rings with antisieze. I thought it was something binding in the linkage, MC, or booster, but it was just ABS coming on a slow...
  8. 9

    1999 Tahoe, soft brake pedal

    I understand. They just don't look like regular hardware store flare fittings, and I didn't know what I could use that wouldn't damage the sealing surface.
  9. 9

    1999 Tahoe, soft brake pedal

    I've never had a problem bleeding brakes like this before, unless there was failure in the system, and I had hard time getting the portioning valve centered. Everything is new within the last year or two as far as the brakes go. I did try my Tech2 to do the automated bled procedure. It wouldn't...
  10. 9

    1999 Tahoe, soft brake pedal

  11. 9

    1999 Tahoe, soft brake pedal

    Also, new member. Just joined. Haven't been on any forums in a while, but used to read them just to learn. The tech threads on here seem to be a lot more "right" than the Facebook groups. Anyway, seems like a lot of good knowledge on this forum.
  12. 9

    1999 Tahoe, soft brake pedal

    Oh, and thank you for all the replies.
  13. 9

    1999 Tahoe, soft brake pedal

    I have a Chinese Tech2, and I'll try service bled procedure. I have always had good experience with just making the ABS work on loose gravel road. Before I installed the new booster, I looked at both side by side, expecting an adjustable push rod, but didn't see that, and I didn't notice...
  14. 9

    1999 Tahoe, soft brake pedal

    My apologies if this problem has been addressed in another thread, I could find some close, but not the same. 1999 Tahoe, original problem was brake pedal would intermittently feel "notchy", like the ABS was actuating, but I know what that feels like, and this isn't it. Truck has 290,*** miles...

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