Question about Chevrolet Blazer

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Brake petal goes to floor, replaced master cyl

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  • tr51 Aug 21, 2008

    did bleed brakes.the EHCU has two valves one pushes out when patel is push.

  • jedamis Nov 11, 2008

    The day before, I drove over 30 miles and my brakes were just fine, I had absolutely no problems. Today, as I began to brake, the brakes barely worked. Normally, I could go from 10 m.p.h to a stop almost instantly. Now, it takes me about 3-4 seconds. Tommorrow, I know I should check the brake fluid, and the brake pads? If there are problems with either of those, what should I do?



    Thanks

  • Anonymous Jan 18, 2009

    the brake padle is going to the floor, and there is a light in the dash with a car shape, the rear end of it is lit and reads "brake" it is not the usual "hand brake on light" but a different one. 
    I am thinking it must be a master cylinder or something.

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Did you bleed the brake system after replacing the master cyl? If not this could be the biggest part of your problem. So bleed your system see if that helps.

Posted on Aug 21, 2008

  • Rob Cobb
    Rob Cobb Aug 27, 2008

    Good day,

    I would go back over over the lines that you attached to the new master cyl, just to hake sure that they are tight , clean them up could have one with a crack in it.Re-Bleeder you system any see how it is. Possible that you got a bad rebuilt. Did you bench bleed the master cyl before you install it? Please let me know how you make out.



    Cheers.

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3 Suggested Answers

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SOURCE: had broken read brake line. Replaced line and went

beg borrow or steal a pressure bleeder, start with right rear, lest rear, right front then lef front,

Posted on Nov 16, 2009

  • 191 Answers

SOURCE: i have a 94 ford 350 460 engine gas. i replaced

I sounds like you have air in the system I would start by bleeding the entire system,when did the wooshing sound start before or after you replaced the brakes,and witch brakes did you replace(front,rear or all)

Posted on Sep 01, 2010

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