General Motors' GMT400 platform.

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1999 Tahoe break pedal

My 99 Tahoe sometime when I go to stop my brake pedal is hard to push like it is sticking and then breaks free and feels funny until it breaks free

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Sounds like a vacuum problem with the power assist .First check the linkage through the firewall and make sure the vacuum booster is mounted solidly against the fire wall and has not loosened off. then make sure the vacuum line is secure if there's no problems apparent you may need to replace the vacuum booster

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Will that make the pedal push up on my foot when it happens and make a noise?

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yes and squeal

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That is exactly what it is doing thank you that was very helpful.

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adam r will be eternally grateful.
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