Question about 1991 Chevrolet S-10

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91 chevy s10

As we bleed the brakes they get hard like they are supposed to do. I don't notice any air coming out though. Then i take it for a test drive they work but the peddle seems to go down as far as the clutch again. What would cause they brakes to lose pressure after i start driving it.

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  • Coss May 11, 2010

    How old are the brake pads?

    When was the last time the rear shoes were adjusted?

    Depending on how far they have to travel could have someting to do with it.

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When you bleed the brakes there is an order that must be followed. you start with the right rear, then the left rear, then the right front, and finally the left front. you will have to make sure that the master cylinder stays full of fluid because if it runs dry you will have to remove it and bench bleed it. this is a 2 man operation you have one person in the cab and another with a wrench by the bleeder. you have the person hold the pedal down and you open the bleeder you should have a steady stream with no air you can repeat this a couple times. do this fore all four wheels. the system should be ok. if you continue to have thios problem you have a leak in the system or your booster is bad. check the wheel cylinders on the back wheels for leaks or the front calipers...........please rate this solution.....thanks

Posted on Aug 31, 2008

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