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1999 Porsche 911 Question: brakes not working properly



, Aransas Pass, TX, February 13, 2011, 13:31

When I push on the brake pedal it seems to lock up??? If I hit them hard they don't stick but if I just push down they slam you to the dash. Checked the lines and has good vacuum. any ideas??

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  • Answer #1

    overbys from Overbys Inc, February 14, 2011, 09:37

    suspect there is either a caliper or master cylinder issue. when was the last brake fluid flush done? (every
    2 years with super DOT4 fluid only)

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    , March 09, 2011, 23:31

    ended up changing the master cylinder and booster. Any idea why the booster would have water in it????

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