'99 Yukon Brakes

Jun 15, 2005 4 Replies
W

First off, I know that the '99 Yukon does not have the greatest brakes to begin with. However, on my particular Yukon, when I press the brake pedal I get a "squish" noise and the pedal feel is spongy. I recently bled the brakes with a pressure bleeder and the pedal feel improved for a few days. No noise and a somewhat firmer pedal. Now it's back to the way it was before. I bought this vehicle used so I don't know if the brakes were always like this. I noticed some small air bubbles while bleeding and I ran about a quart of fluid through the system, so I think I did a thorough job. I can't think of any way air could get back into the system other than if it was worked on, which it hasn't been.



Any suggestions?


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S

Try adjusting up the rears and look for leaks while you are under there.

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E

I second adjusting the rears, my '99 K1500 will get that way if I don't hit the brakes real good a few times backing out of the driveway, gives the self adjusters a good turn.

Brian

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W

When I drove it today there was no "squish" noise and the pedal seemed firmer again. Perhaps it is just the self adjusters not taking up the slack sometimes. When I back out of my driveway I back up a hill so there isn't much braking involved in reverse. Seems I read somewhere that you need to back up fast and hit the brakes hard several times for the self adjusters to work properly. I usually back up slow anyway due to having "limo" tint on my rear windows, which inhibits visibility.

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M

Go to an empty mall parking lot to "adjust" the brakes.

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