Question about 1999 GMC Jimmy

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Abs system the abs light comes on and then my breaks fail. it does a skipping. and now there is no pressure in my breaks at all

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It is a failed wheel bearing.the hub and bearing comes with an abs sensor and when the bearing could not be located by the sensor it will turn on the abs light and make the car skip when braking.check to see if your not missing any brake fluid and that the truck is still able to brake.if all is good then change the faulty wheel bearing.if you dont want to invest right away just disconnect the connector for the abs to the bearing.braking will feel normal and youll just have the abs light on.

Posted on Oct 04, 2009

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All 3 problems can be a leak or seal in caliper/cylinder look for leak if no leaks or broken lines ur brake problems work out to skipping is abs activating to stop vehicle abs light -can be connector out of clip to bad sensor need to have scanned to get proper code but check to make sure connectors in clips first-no pressure in brakes[brake pedal goes to floor] is a vacuum problem at power booster check lines to booster for breaks or leaks -

Posted on Oct 04, 2009


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Hi and welcome to FixYa!
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